166626612 has 96 divisors (see below), whose sum is σ = 450186240. Its totient is φ = 53239680.

The previous prime is 166626569. The next prime is 166626631. The reversal of 166626612 is 216626661.

It is a happy number.

166626612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525478 + ... + 525794.

It is an arithmetic number, because the mean of its divisors is an integer number (4689440).

Almost surely, 2^166626612 is an apocalyptic number.

166626612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166626612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225093120).

166626612 is an abundant number, since it is smaller than the sum of its proper divisors (283559628).

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

166626612 is a wasteful number, since it uses less digits than its factorization.

166626612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 510 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 166626612 is about 12908.3930835716. The cubic root of 166626612 is about 550.2771187518.

The spelling of 166626612 in words is "one hundred sixty-six million, six hundred twenty-six thousand, six hundred twelve".