64947164995 has 16 divisors (see below), whose sum is σ = 80327332512. Its totient is φ = 50379459840.

The previous prime is 64947164921. The next prime is 64947165029. The reversal of 64947164995 is 59946174946.

It is not a de Polignac number, because 64947164995 - 2¹⁷ = 64947033923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938412 + ... + 1005241.

It is an arithmetic number, because the mean of its divisors is an integer number (5020458282).

Almost surely, 2^64947164995 is an apocalyptic number.

64947164995 is a deficient number, since it is larger than the sum of its proper divisors (15380167517).

64947164995 is a wasteful number, since it uses less digits than its factorization.

64947164995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943862.

The product of its digits is 58786560, while the sum is 64.

The spelling of 64947164995 in words is "sixty-four billion, nine hundred forty-seven million, one hundred sixty-four thousand, nine hundred ninety-five".