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16681090369330 = 254445393752447
BaseRepresentation
bin1111001010111101111001…
…1101110100011100110010
32012001200210212110102202001
43302233132131310130302
54141300333113304310
655251104230244214
73341111653440442
oct362573635643462
965050725412661
1016681090369330
115351457702722
121a54aa74b666a
1394003513887a
14419524a90122
151ddda7ce993a
hexf2bde774732

16681090369330 has 16 divisors (see below), whose sum is σ = 30026038210560. Its totient is φ = 6672419359792.

The previous prime is 16681090369301. The next prime is 16681090369331. The reversal of 16681090369330 is 3396309018661.

It is not an unprimeable number, because it can be changed into a prime (16681090369331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2569167 + ... + 6321613.

It is an arithmetic number, because the mean of its divisors is an integer number (1876627388160).

Almost surely, 216681090369330 is an apocalyptic number.

16681090369330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16681090369330 is a deficient number, since it is larger than the sum of its proper divisors (13344947841230).

16681090369330 is a wasteful number, since it uses less digits than its factorization.

16681090369330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196993.

The product of its (nonzero) digits is 3779136, while the sum is 55.

The spelling of 16681090369330 in words is "sixteen trillion, six hundred eighty-one billion, ninety million, three hundred sixty-nine thousand, three hundred thirty".

Divisors: 1 2 5 10 444539 889078 2222695 3752447 4445390 7504894 18762235 37524470 1668109036933 3336218073866 8340545184665 16681090369330