40112056351665 has 24 divisors (see below), whose sum is σ = 69531367375080. Its totient is φ = 21391926557184.

The previous prime is 40112056351651. The next prime is 40112056351667. The reversal of 40112056351665 is 56615365021104.

40112056351665 is a `hidden beast` number, since 4 + 0 + 1 + 1 + 2 + 0 + 5 + 635 + 1 + 6 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16631984402289 + 23480071949376 = 4078233^2 + 4845624^2 .

It is not a de Polignac number, because 40112056351665 - 2²⁴ = 40112039574449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40112056351665.

It is not an unprimeable number, because it can be changed into a prime (40112056351667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23546262 + ... + 25192271.

It is an arithmetic number, because the mean of its divisors is an integer number (2897140307295).

Almost surely, 2^{40112056351665} is an apocalyptic number.

40112056351665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40112056351665 is a deficient number, since it is larger than the sum of its proper divisors (29419311023415).

40112056351665 is a wasteful number, since it uses less digits than its factorization.

40112056351665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48756833 (or 48756830 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 40112056351665 in words is "forty trillion, one hundred twelve billion, fifty-six million, three hundred fifty-one thousand, six hundred sixty-five".