40164156415664 has 40 divisors (see below), whose sum is σ = 78563892205152. Its totient is φ = 19889862487040.

The previous prime is 40164156415637. The next prime is 40164156415717. The reversal of 40164156415664 is 46651465146104.

It is a super-2 number, since 2×40164156415664² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5607452 + ... + 10572219.

Almost surely, 2^{40164156415664} is an apocalyptic number.

It is an amenable number.

40164156415664 is a deficient number, since it is larger than the sum of its proper divisors (38399735789488).

40164156415664 is a wasteful number, since it uses less digits than its factorization.

40164156415664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16181165 (or 16181159 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 40164156415664 in words is "forty trillion, one hundred sixty-four billion, one hundred fifty-six million, four hundred fifteen thousand, six hundred sixty-four".