164343635664 has 40 divisors (see below), whose sum is σ = 457212424032. Its totient is φ = 50567272320.

The previous prime is 164343635657. The next prime is 164343635683. The reversal of 164343635664 is 466536343461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131684982 + ... + 131686229.

Almost surely, 2^164343635664 is an apocalyptic number.

It is an amenable number.

164343635664 is an abundant number, since it is smaller than the sum of its proper divisors (292868788368).

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

164343635664 is a wasteful number, since it uses less digits than its factorization.

164343635664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263371235 (or 263371229 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 51.

The spelling of 164343635664 in words is "one hundred sixty-four billion, three hundred forty-three million, six hundred thirty-five thousand, six hundred sixty-four".