164740197924 has 45 divisors (see below), whose sum is σ = 430682518497. Its totient is φ = 54910964016.

The previous prime is 164740197911. The next prime is 164740197961. The reversal of 164740197924 is 429791047461.

The square root of 164740197924 is 405882.

It is a perfect power (a square), and thus also a powerful number.

164740197924 is a `hidden beast` number, since 1 + 64 + 7 + 401 + 97 + 92 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 163311357924 + 1428840000 = 404118^2 + 37800^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7294602 + ... + 7317150.

Almost surely, 2^164740197924 is an apocalyptic number.

164740197924 is the 405882-nd square number.

It is an amenable number.

164740197924 is an abundant number, since it is smaller than the sum of its proper divisors (265942320573).

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

164740197924 is an frugal number, since it uses more digits than its factorization.

164740197924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45114 (or 22554 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 164740197924 in words is "one hundred sixty-four billion, seven hundred forty million, one hundred ninety-seven thousand, nine hundred twenty-four".