40165686516408 has 16 divisors (see below), whose sum is σ = 100414216291080. Its totient is φ = 13388562172128.

The previous prime is 40165686516383. The next prime is 40165686516467. The reversal of 40165686516408 is 80461568656104.

It is a happy number.

40165686516408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40165686516408² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836785135735 + ... + 836785135782.

Almost surely, 2^{40165686516408} is an apocalyptic number.

It is an amenable number.

40165686516408 is an abundant number, since it is smaller than the sum of its proper divisors (60248529774672).

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

40165686516408 is a wasteful number, since it uses less digits than its factorization.

40165686516408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673570271526 (or 1673570271522 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 40165686516408 in words is "forty trillion, one hundred sixty-five billion, six hundred eighty-six million, five hundred sixteen thousand, four hundred eight".