64163435677752 has 64 divisors (see below), whose sum is σ = 168852274272000. Its totient is φ = 20262002252544.

The previous prime is 64163435677697. The next prime is 64163435677769. The reversal of 64163435677752 is 25777653436146.

It is a congruent number.

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, 84844933 + ... + 85597835.

It is an arithmetic number, because the mean of its divisors is an integer number (2638316785500).

Almost surely, 2^{64163435677752} is an apocalyptic number.

It is an amenable number.

64163435677752 is an abundant number, since it is smaller than the sum of its proper divisors (104688838594248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64163435677752 is a wasteful number, since it uses less digits than its factorization.

64163435677752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939820 (or 939816 counting only the distinct ones).

The product of its digits is 533433600, while the sum is 66.

The spelling of 64163435677752 in words is "sixty-four trillion, one hundred sixty-three billion, four hundred thirty-five million, six hundred seventy-seven thousand, seven hundred fifty-two".