164500003620 has 144 divisors (see below), whose sum is σ = 500779843200. Its totient is φ = 43709073408.

The previous prime is 164500003579. The next prime is 164500003643. The reversal of 164500003620 is 26300005461.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72561727 + ... + 72563993.

It is an arithmetic number, because the mean of its divisors is an integer number (3477637800).

Almost surely, 2^164500003620 is an apocalyptic number.

164500003620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164500003620 is an abundant number, since it is smaller than the sum of its proper divisors (336279839580).

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

164500003620 is a wasteful number, since it uses less digits than its factorization.

164500003620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 164500003620 in words is "one hundred sixty-four billion, five hundred million, three thousand, six hundred twenty".