20161616132 has 24 divisors (see below), whose sum is σ = 41181176064. Its totient is φ = 8456847552.

The previous prime is 20161616131. The next prime is 20161616159. The reversal of 20161616132 is 23161616102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20161616095 and 20161616104.

It is not an unprimeable number, because it can be changed into a prime (20161616131) 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, 7658873 + ... + 7661504.

It is an arithmetic number, because the mean of its divisors is an integer number (1715882336).

Almost surely, 2^20161616132 is an apocalyptic number.

It is an amenable number.

20161616132 is an abundant number, since it is smaller than the sum of its proper divisors (21019559932).

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

20161616132 is a wasteful number, since it uses less digits than its factorization.

20161616132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320435 (or 15320433 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20161616132 in words is "twenty billion, one hundred sixty-one million, six hundred sixteen thousand, one hundred thirty-two".