40163554512 has 50 divisors (see below), whose sum is σ = 116244982898. Its totient is φ = 13387851072.

The previous prime is 40163554469. The next prime is 40163554549. The reversal of 40163554512 is 21545536104.

40163554512 is a `hidden beast` number, since 4 + 0 + 1 + 635 + 5 + 4 + 5 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26314030656 + 13849523856 = 162216^2 + 117684^2 .

It is a super-2 number, since 2×40163554512² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15493903 + ... + 15496494.

Almost surely, 2^40163554512 is an apocalyptic number.

It is an amenable number.

40163554512 is an abundant number, since it is smaller than the sum of its proper divisors (76081428386).

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

40163554512 is a wasteful number, since it uses less digits than its factorization.

40163554512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30990417 (or 30990402 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 40163554512 in words is "forty billion, one hundred sixty-three million, five hundred fifty-four thousand, five hundred twelve".