164697625 has 16 divisors (see below), whose sum is σ = 207043200. Its totient is φ = 130796400.

The previous prime is 164697607. The next prime is 164697677. The reversal of 164697625 is 526796461.

It is not a de Polignac number, because 164697625 - 2¹³ = 164689433 is a prime.

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, 12636 + ... + 22114.

It is an arithmetic number, because the mean of its divisors is an integer number (12940200).

Almost surely, 2^164697625 is an apocalyptic number.

It is an amenable number.

164697625 is a deficient number, since it is larger than the sum of its proper divisors (42345575).

164697625 is an equidigital number, since it uses as much as digits as its factorization.

164697625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633 (or 9623 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 164697625 is about 12833.4572504840. The cubic root of 164697625 is about 548.1454062526.

The spelling of 164697625 in words is "one hundred sixty-four million, six hundred ninety-seven thousand, six hundred twenty-five".