164513720 has 32 divisors (see below), whose sum is σ = 423036000. Its totient is φ = 56404608.

The previous prime is 164513717. The next prime is 164513737. The reversal of 164513720 is 27315461.

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, 293495 + ... + 294054.

It is an arithmetic number, because the mean of its divisors is an integer number (13219875).

Almost surely, 2^164513720 is an apocalyptic number.

164513720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164513720 is an abundant number, since it is smaller than the sum of its proper divisors (258522280).

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

164513720 is a wasteful number, since it uses less digits than its factorization.

164513720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587567 (or 587563 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 164513720 is about 12826.2901885151. The cubic root of 164513720 is about 547.9413065169.

The spelling of 164513720 in words is "one hundred sixty-four million, five hundred thirteen thousand, seven hundred twenty".