166601274 has 32 divisors (see below), whose sum is σ = 388579200. Its totient is φ = 47599776.

The previous prime is 166601233. The next prime is 166601311. The reversal of 166601274 is 472106661.

166601274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 38419 + ... + 42534.

It is an arithmetic number, because the mean of its divisors is an integer number (12143100).

Almost surely, 2^166601274 is an apocalyptic number.

166601274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166601274 is an abundant number, since it is smaller than the sum of its proper divisors (221977926).

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

166601274 is an equidigital number, since it uses as much as digits as its factorization.

166601274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80979 (or 80965 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 166601274 is about 12907.4115917948. The cubic root of 166601274 is about 550.2492247913.

The spelling of 166601274 in words is "one hundred sixty-six million, six hundred one thousand, two hundred seventy-four".