64737905056 has 48 divisors (see below), whose sum is σ = 139083624288. Its totient is φ = 29416953600.

The previous prime is 64737905053. The next prime is 64737905069. The reversal of 64737905056 is 65050973746.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64737904994 and 64737905012.

It is not an unprimeable number, because it can be changed into a prime (64737905053) 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, 1144906 + ... + 1200118.

It is an arithmetic number, because the mean of its divisors is an integer number (2897575506).

Almost surely, 2^64737905056 is an apocalyptic number.

It is an amenable number.

64737905056 is an abundant number, since it is smaller than the sum of its proper divisors (74345719232).

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

64737905056 is a wasteful number, since it uses less digits than its factorization.

64737905056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58565 (or 58557 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 52.

The spelling of 64737905056 in words is "sixty-four billion, seven hundred thirty-seven million, nine hundred five thousand, fifty-six".