40164765072 has 40 divisors (see below), whose sum is σ = 106171981344. Its totient is φ = 13076899584.

The previous prime is 40164765061. The next prime is 40164765077. The reversal of 40164765072 is 27056746104.

It is a super-2 number, since 2×40164765072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40164765077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9727773 + ... + 9731900.

Almost surely, 2^40164765072 is an apocalyptic number.

It is an amenable number.

40164765072 is an abundant number, since it is smaller than the sum of its proper divisors (66007216272).

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

40164765072 is a wasteful number, since it uses less digits than its factorization.

40164765072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459727 (or 19459721 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 40164765072 in words is "forty billion, one hundred sixty-four million, seven hundred sixty-five thousand, seventy-two".