65172640074 has 16 divisors (see below), whose sum is σ = 130355457408. Its totient is φ = 21722517152.

The previous prime is 65172640063. The next prime is 65172640109. The reversal of 65172640074 is 47004627156.

65172640074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 339507 + ... + 495590.

It is an arithmetic number, because the mean of its divisors is an integer number (8147216088).

Almost surely, 2^65172640074 is an apocalyptic number.

65172640074 is an abundant number, since it is smaller than the sum of its proper divisors (65182817334).

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

65172640074 is a wasteful number, since it uses less digits than its factorization.

65172640074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848109.

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

The spelling of 65172640074 in words is "sixty-five billion, one hundred seventy-two million, six hundred forty thousand, seventy-four".