401565610136 has 16 divisors (see below), whose sum is σ = 758352323400. Its totient is φ = 199338323904.

The previous prime is 401565610133. The next prime is 401565610157. The reversal of 401565610136 is 631016565104.

It is a super-2 number, since 2×401565610136² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401565610136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401565610133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180558965 + ... + 180561188.

Almost surely, 2^401565610136 is an apocalyptic number.

It is an amenable number.

401565610136 is a deficient number, since it is larger than the sum of its proper divisors (356786713264).

401565610136 is a wasteful number, since it uses less digits than its factorization.

401565610136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361120298 (or 361120294 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 401565610136 in words is "four hundred one billion, five hundred sixty-five million, six hundred ten thousand, one hundred thirty-six".