166512372 has 24 divisors (see below), whose sum is σ = 418416096. Its totient is φ = 51234528.

The previous prime is 166512361. The next prime is 166512373. The reversal of 166512372 is 273215661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166512373) 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, 533538 + ... + 533849.

It is an arithmetic number, because the mean of its divisors is an integer number (17434004).

Almost surely, 2^166512372 is an apocalyptic number.

166512372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166512372 is an abundant number, since it is smaller than the sum of its proper divisors (251903724).

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

166512372 is a wasteful number, since it uses less digits than its factorization.

166512372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067407 (or 1067405 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 166512372 is about 12903.9672969207. The cubic root of 166512372 is about 550.1513324617.

The spelling of 166512372 in words is "one hundred sixty-six million, five hundred twelve thousand, three hundred seventy-two".