166611612 has 24 divisors (see below), whose sum is σ = 402166800. Its totient is φ = 53622016.

The previous prime is 166611559. The next prime is 166611677. The reversal of 166611612 is 216116661.

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

It is a self number, because there is not a number n which added to its sum of digits gives 166611612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239037 + ... + 239732.

It is an arithmetic number, because the mean of its divisors is an integer number (16756950).

Almost surely, 2^166611612 is an apocalyptic number.

166611612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166611612 is an abundant number, since it is smaller than the sum of its proper divisors (235555188).

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

166611612 is a wasteful number, since it uses less digits than its factorization.

166611612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478805 (or 478803 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 166611612 is about 12907.8120531715. The cubic root of 166611612 is about 550.2606059744.

The spelling of 166611612 in words is "one hundred sixty-six million, six hundred eleven thousand, six hundred twelve".