20160261565140 has 48 divisors (see below), whose sum is σ = 56486694120192. Its totient is φ = 5372454347136.

The previous prime is 20160261565133. The next prime is 20160261565187. The reversal of 20160261565140 is 4156516206102.

It is a super-2 number, since 2×20160261565140² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112891399 + ... + 113069838.

It is an arithmetic number, because the mean of its divisors is an integer number (1176806127504).

Almost surely, 2^{20160261565140} is an apocalyptic number.

20160261565140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20160261565140 is an abundant number, since it is smaller than the sum of its proper divisors (36326432555052).

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

20160261565140 is a wasteful number, since it uses less digits than its factorization.

20160261565140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225962736 (or 225962734 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 20160261565140 in words is "twenty trillion, one hundred sixty billion, two hundred sixty-one million, five hundred sixty-five thousand, one hundred forty".