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16631163132 = 2231385930261
BaseRepresentation
bin11110111110100101…
…10110100011111100
31120221001110121211220
433133102312203330
5233030034210012
611350143313340
71126064361033
oct173722664374
946831417756
1016631163132
117064949021
1232818ab850
13175077333c
14b3ab0b71a
1567511c08c
hex3df4b68fc

16631163132 has 12 divisors (see below), whose sum is σ = 38806047336. Its totient is φ = 5543721040.

The previous prime is 16631163091. The next prime is 16631163149. The reversal of 16631163132 is 23136113661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16631163093 and 16631163102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692965119 + ... + 692965142.

It is an arithmetic number, because the mean of its divisors is an integer number (3233837278).

Almost surely, 216631163132 is an apocalyptic number.

16631163132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16631163132 is an abundant number, since it is smaller than the sum of its proper divisors (22174884204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16631163132 is a wasteful number, since it uses less digits than its factorization.

16631163132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385930268 (or 1385930266 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

Adding to 16631163132 its reverse (23136113661), we get a palindrome (39767276793).

The spelling of 16631163132 in words is "sixteen billion, six hundred thirty-one million, one hundred sixty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 1385930261 2771860522 4157790783 5543721044 8315581566 16631163132