166074769 has 15 divisors (see below), whose sum is σ = 194481833. Its totient is φ = 141808548.

The previous prime is 166074761. The next prime is 166074809. The reversal of 166074769 is 967470661.

The square root of 166074769 is 12887.

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

It is not a de Polignac number, because 166074769 - 2³ = 166074761 is a prime.

It is a super-2 number, since 2×166074769² = 55161657796806722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166074761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 631332 + ... + 631594.

Almost surely, 2^166074769 is an apocalyptic number.

166074769 is the 12887-th square number.

166074769 is the 6444-th centered octagonal number.

It is an amenable number.

166074769 is a deficient number, since it is larger than the sum of its proper divisors (28407064).

166074769 is an frugal number, since it uses more digits than its factorization.

166074769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The cubic root of 166074769 is about 549.6689677415.

The spelling of 166074769 in words is "one hundred sixty-six million, seventy-four thousand, seven hundred sixty-nine".