40161108688525 has 12 divisors (see below), whose sum is σ = 54327027026304. Its totient is φ = 29208079046000.

The previous prime is 40161108688511. The next prime is 40161108688529. The reversal of 40161108688525 is 52588680116104.

It is not a de Polignac number, because 40161108688525 - 2¹³ = 40161108680333 is a prime.

It is a super-2 number, since 2×40161108688525² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40161108688529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73020197341 + ... + 73020197890.

It is an arithmetic number, because the mean of its divisors is an integer number (4527252252192).

Almost surely, 2^{40161108688525} is an apocalyptic number.

It is an amenable number.

40161108688525 is a deficient number, since it is larger than the sum of its proper divisors (14165918337779).

40161108688525 is a wasteful number, since it uses less digits than its factorization.

40161108688525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146040395252 (or 146040395247 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 55.

The spelling of 40161108688525 in words is "forty trillion, one hundred sixty-one billion, one hundred eight million, six hundred eighty-eight thousand, five hundred twenty-five".