166632426 has 48 divisors (see below), whose sum is σ = 367630848. Its totient is φ = 54540000.

The previous prime is 166632391. The next prime is 166632443. The reversal of 166632426 is 624236661.

Its product of digits (62208) is a multiple of the sum of its prime divisors (864).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274215 + ... + 274821.

It is an arithmetic number, because the mean of its divisors is an integer number (7658976).

Almost surely, 2^166632426 is an apocalyptic number.

166632426 is an abundant number, since it is smaller than the sum of its proper divisors (200998422).

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

166632426 is a wasteful number, since it uses less digits than its factorization.

166632426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 166632426 is about 12908.6182839218. The cubic root of 166632426 is about 550.2835188379.

The spelling of 166632426 in words is "one hundred sixty-six million, six hundred thirty-two thousand, four hundred twenty-six".