166492550 has 24 divisors (see below), whose sum is σ = 353916336. Its totient is φ = 57083040.

The previous prime is 166492531. The next prime is 166492559. The reversal of 166492550 is 55294661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166492559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237497 + ... + 238196.

It is an arithmetic number, because the mean of its divisors is an integer number (14746514).

Almost surely, 2^166492550 is an apocalyptic number.

166492550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166492550 is an abundant number, since it is smaller than the sum of its proper divisors (187423786).

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

166492550 is a wasteful number, since it uses less digits than its factorization.

166492550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475712 (or 475707 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 166492550 is about 12903.1992156984. The cubic root of 166492550 is about 550.1295011861.

The spelling of 166492550 in words is "one hundred sixty-six million, four hundred ninety-two thousand, five hundred fifty".