164766550 has 144 divisors (see below), whose sum is σ = 372511872. Its totient is φ = 53913600.

The previous prime is 164766529. The next prime is 164766557. The reversal of 164766550 is 55667461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164766557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4453132 + ... + 4453168.

It is an arithmetic number, because the mean of its divisors is an integer number (2586888).

Almost surely, 2^164766550 is an apocalyptic number.

164766550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164766550 is an abundant number, since it is smaller than the sum of its proper divisors (207745322).

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

164766550 is a wasteful number, since it uses less digits than its factorization.

164766550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 164766550 is about 12836.1423332713. The cubic root of 164766550 is about 548.2218608119.

The spelling of 164766550 in words is "one hundred sixty-four million, seven hundred sixty-six thousand, five hundred fifty".