64663277814375 has 80 divisors (see below), whose sum is σ = 114098553350496. Its totient is φ = 32451770880000.

The previous prime is 64663277814361. The next prime is 64663277814407. The reversal of 64663277814375 is 57341877236646.

It is not a de Polignac number, because 64663277814375 - 2²⁰ = 64663276765799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 157033755 + ... + 157444995.

Almost surely, 2^{64663277814375} is an apocalyptic number.

64663277814375 is a deficient number, since it is larger than the sum of its proper divisors (49435275536121).

64663277814375 is a wasteful number, since it uses less digits than its factorization.

64663277814375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416214 (or 416199 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 69.

The spelling of 64663277814375 in words is "sixty-four trillion, six hundred sixty-three billion, two hundred seventy-seven million, eight hundred fourteen thousand, three hundred seventy-five".