166554552 has 32 divisors (see below), whose sum is σ = 417102480. Its totient is φ = 55422720.

The previous prime is 166554547. The next prime is 166554607. The reversal of 166554552 is 255455661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166554552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9052 + ... + 20372.

Almost surely, 2^166554552 is an apocalyptic number.

166554552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166554552 is an abundant number, since it is smaller than the sum of its proper divisors (250547928).

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

166554552 is a wasteful number, since it uses less digits than its factorization.

166554552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11943 (or 11939 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 166554552 is about 12905.6015745102. The cubic root of 166554552 is about 550.1977823117.

The spelling of 166554552 in words is "one hundred sixty-six million, five hundred fifty-four thousand, five hundred fifty-two".