64573317640404 has 96 divisors (see below), whose sum is σ = 173868838819200. Its totient is φ = 20707386289920.

The previous prime is 64573317640397. The next prime is 64573317640423. The reversal of 64573317640404 is 40404671337546.

64573317640404 is a `hidden beast` number, since 6 + 4 + 573 + 3 + 1 + 7 + 64 + 0 + 4 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90428002 + ... + 91139289.

It is an arithmetic number, because the mean of its divisors is an integer number (1811133737700).

Almost surely, 2^{64573317640404} is an apocalyptic number.

It is an amenable number.

64573317640404 is an abundant number, since it is smaller than the sum of its proper divisors (109295521178796).

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

64573317640404 is a wasteful number, since it uses less digits than its factorization.

64573317640404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181567430 (or 181567422 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 54.

The spelling of 64573317640404 in words is "sixty-four trillion, five hundred seventy-three billion, three hundred seventeen million, six hundred forty thousand, four hundred four".