64334696661 has 16 divisors (see below), whose sum is σ = 95323032000. Its totient is φ = 42884231184.

The previous prime is 64334696659. The next prime is 64334696677. The reversal of 64334696661 is 16669643346.

It is not a de Polignac number, because 64334696661 - 2¹ = 64334696659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64334696598 and 64334696607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64334696561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62815 + ... + 364163.

It is an arithmetic number, because the mean of its divisors is an integer number (5957689500).

Almost surely, 2^64334696661 is an apocalyptic number.

It is an amenable number.

64334696661 is a deficient number, since it is larger than the sum of its proper divisors (30988335339).

64334696661 is a wasteful number, since it uses less digits than its factorization.

64334696661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309265 (or 309259 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 54.

The spelling of 64334696661 in words is "sixty-four billion, three hundred thirty-four million, six hundred ninety-six thousand, six hundred sixty-one".