166056054 has 8 divisors (see below), whose sum is σ = 332112120. Its totient is φ = 55352016.

The previous prime is 166056053. The next prime is 166056073. The reversal of 166056054 is 450650661.

It is a sphenic number, since it is the product of 3 distinct primes.

166056054 is an admirable number.

It is a super-2 number, since 2×166056054² = 55149226140101832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166056053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13837999 + ... + 13838010.

It is an arithmetic number, because the mean of its divisors is an integer number (41514015).

Almost surely, 2^166056054 is an apocalyptic number.

166056054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166056054 is a wasteful number, since it uses less digits than its factorization.

166056054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27676014.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 166056054 is about 12886.2738601971. The cubic root of 166056054 is about 549.6483195294.

The spelling of 166056054 in words is "one hundred sixty-six million, fifty-six thousand, fifty-four".