40164050816 has 32 divisors (see below), whose sum is σ = 81370510200. Its totient is φ = 19741648384.

The previous prime is 40164050807. The next prime is 40164050851. The reversal of 40164050816 is 61805046104.

40164050816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×40164050816² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651615 + ... + 2666718.

Almost surely, 2^40164050816 is an apocalyptic number.

It is an amenable number.

40164050816 is an abundant number, since it is smaller than the sum of its proper divisors (41206459384).

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

40164050816 is an equidigital number, since it uses as much as digits as its factorization.

40164050816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318406 (or 5318394 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 40164050816 in words is "forty billion, one hundred sixty-four million, fifty thousand, eight hundred sixteen".