64658713255 has 4 divisors (see below), whose sum is σ = 77590455912. Its totient is φ = 51726970600.

The previous prime is 64658713247. The next prime is 64658713277. The reversal of 64658713255 is 55231785646.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64658713255 - 2³ = 64658713247 is a prime.

It is a Duffinian number.

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, 6465871321 + ... + 6465871330.

It is an arithmetic number, because the mean of its divisors is an integer number (19397613978).

Almost surely, 2^64658713255 is an apocalyptic number.

64658713255 is a deficient number, since it is larger than the sum of its proper divisors (12931742657).

64658713255 is a wasteful number, since it uses less digits than its factorization.

64658713255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12931742656.

The product of its digits is 6048000, while the sum is 52.

The spelling of 64658713255 in words is "sixty-four billion, six hundred fifty-eight million, seven hundred thirteen thousand, two hundred fifty-five".