166372626 has 48 divisors (see below), whose sum is σ = 401385024. Its totient is φ = 45029088.

The previous prime is 166372603. The next prime is 166372627. The reversal of 166372626 is 626273661.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (166372627) 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 23 ways as a sum of consecutive naturals, for example, 9676 + ... + 20648.

It is an arithmetic number, because the mean of its divisors is an integer number (8362188).

Almost surely, 2^166372626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166372626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200692512).

166372626 is an abundant number, since it is smaller than the sum of its proper divisors (235012398).

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

166372626 is a wasteful number, since it uses less digits than its factorization.

166372626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11023 (or 11004 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 166372626 is about 12898.5513140042. The cubic root of 166372626 is about 549.9973840096.

The spelling of 166372626 in words is "one hundred sixty-six million, three hundred seventy-two thousand, six hundred twenty-six".