166142622 has 16 divisors (see below), whose sum is σ = 334276992. Its totient is φ = 55048920.

The previous prime is 166142621. The next prime is 166142633. The reversal of 166142622 is 226241661.

It is a self number, because there is not a number n which added to its sum of digits gives 166142622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166142621) 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, 81904 + ... + 83907.

It is an arithmetic number, because the mean of its divisors is an integer number (20892312).

Almost surely, 2^166142622 is an apocalyptic number.

166142622 is an abundant number, since it is smaller than the sum of its proper divisors (168134370).

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

166142622 is a wasteful number, since it uses less digits than its factorization.

166142622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165983.

The product of its digits is 6912, while the sum is 30.

The square root of 166142622 is about 12889.6323454162. The cubic root of 166142622 is about 549.7438167797.

The spelling of 166142622 in words is "one hundred sixty-six million, one hundred forty-two thousand, six hundred twenty-two".