64578158104 has 16 divisors (see below), whose sum is σ = 122282899920. Its totient is φ = 31969384800.

The previous prime is 64578158087. The next prime is 64578158149. The reversal of 64578158104 is 40185187546.

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, 39960924 + ... + 39962539.

It is an arithmetic number, because the mean of its divisors is an integer number (7642681245).

Almost surely, 2^64578158104 is an apocalyptic number.

It is an amenable number.

64578158104 is a deficient number, since it is larger than the sum of its proper divisors (57704741816).

64578158104 is a wasteful number, since it uses less digits than its factorization.

64578158104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79923570 (or 79923566 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 64578158104 in words is "sixty-four billion, five hundred seventy-eight million, one hundred fifty-eight thousand, one hundred four".