64479354655 has 64 divisors (see below), whose sum is σ = 87405212160. Its totient is φ = 45375012864.

The previous prime is 64479354647. The next prime is 64479354683. The reversal of 64479354655 is 55645397446.

It is a cyclic number.

It is not a de Polignac number, because 64479354655 - 2³ = 64479354647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64479354655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81930172 + ... + 81930958.

It is an arithmetic number, because the mean of its divisors is an integer number (1365706440).

Almost surely, 2^64479354655 is an apocalyptic number.

64479354655 is a deficient number, since it is larger than the sum of its proper divisors (22925857505).

64479354655 is a wasteful number, since it uses less digits than its factorization.

64479354655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

The product of its digits is 54432000, while the sum is 58.

The spelling of 64479354655 in words is "sixty-four billion, four hundred seventy-nine million, three hundred fifty-four thousand, six hundred fifty-five".