64460336655 has 128 divisors (see below), whose sum is σ = 123428551680. Its totient is φ = 28552128000.

The previous prime is 64460336627. The next prime is 64460336663. The reversal of 64460336655 is 55663306446.

It is not a de Polignac number, because 64460336655 - 2⁵ = 64460336623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26212816 + ... + 26215274.

It is an arithmetic number, because the mean of its divisors is an integer number (964285560).

Almost surely, 2^64460336655 is an apocalyptic number.

64460336655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64460336655 is a deficient number, since it is larger than the sum of its proper divisors (58968215025).

64460336655 is a wasteful number, since it uses less digits than its factorization.

64460336655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614 (or 2592 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 64460336655 in words is "sixty-four billion, four hundred sixty million, three hundred thirty-six thousand, six hundred fifty-five".