64545580174164 has 12 divisors (see below), whose sum is σ = 150606353739744. Its totient is φ = 21515193391384.

The previous prime is 64545580174099. The next prime is 64545580174183. The reversal of 64545580174164 is 46147108554546.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×64545580174164² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64545580174098 and 64545580174107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689399173912 + ... + 2689399173935.

It is an arithmetic number, because the mean of its divisors is an integer number (12550529478312).

Almost surely, 2^{64545580174164} is an apocalyptic number.

It is an amenable number.

64545580174164 is an abundant number, since it is smaller than the sum of its proper divisors (86060773565580).

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

64545580174164 is a wasteful number, since it uses less digits than its factorization.

64545580174164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378798347854 (or 5378798347852 counting only the distinct ones).

The product of its (nonzero) digits is 64512000, while the sum is 60.

The spelling of 64545580174164 in words is "sixty-four trillion, five hundred forty-five billion, five hundred eighty million, one hundred seventy-four thousand, one hundred sixty-four".