164601660 has 48 divisors (see below), whose sum is σ = 461462400. Its totient is φ = 43838784.

The previous prime is 164601653. The next prime is 164601677. The reversal of 164601660 is 66106461.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74451 + ... + 76629.

It is an arithmetic number, because the mean of its divisors is an integer number (9613800).

Almost surely, 2^164601660 is an apocalyptic number.

164601660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164601660 is an abundant number, since it is smaller than the sum of its proper divisors (296860740).

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

164601660 is a wasteful number, since it uses less digits than its factorization.

164601660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 164601660 is about 12829.7178456894. The cubic root of 164601660 is about 548.0389222359.

The spelling of 164601660 in words is "one hundred sixty-four million, six hundred one thousand, six hundred sixty".