166365372 has 24 divisors (see below), whose sum is σ = 397654992. Its totient is φ = 54102400.

The previous prime is 166365343. The next prime is 166365377. The reversal of 166365372 is 273563661.

166365372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166365372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166365377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168579 + ... + 169562.

It is an arithmetic number, because the mean of its divisors is an integer number (16568958).

Almost surely, 2^166365372 is an apocalyptic number.

166365372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166365372 is an abundant number, since it is smaller than the sum of its proper divisors (231289620).

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

166365372 is a wasteful number, since it uses less digits than its factorization.

166365372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338189 (or 338187 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 166365372 is about 12898.2701165699. The cubic root of 166365372 is about 549.9893904290.

The spelling of 166365372 in words is "one hundred sixty-six million, three hundred sixty-five thousand, three hundred seventy-two".