164799140 has 48 divisors (see below), whose sum is σ = 393966720. Its totient is φ = 57319680.

The previous prime is 164799133. The next prime is 164799149. The reversal of 164799140 is 41997461.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164799149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11225 + ... + 21344.

It is an arithmetic number, because the mean of its divisors is an integer number (8207640).

Almost surely, 2^164799140 is an apocalyptic number.

164799140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164799140 is an abundant number, since it is smaller than the sum of its proper divisors (229167580).

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

164799140 is a wasteful number, since it uses less digits than its factorization.

164799140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32612 (or 32610 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 164799140 is about 12837.4117329001. The cubic root of 164799140 is about 548.2580036103.

The spelling of 164799140 in words is "one hundred sixty-four million, seven hundred ninety-nine thousand, one hundred forty".