166464620 has 24 divisors (see below), whose sum is σ = 399515424. Its totient is φ = 57073536.

The previous prime is 166464619. The next prime is 166464631. The reversal of 166464620 is 26464661.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 594377 + ... + 594656.

It is an arithmetic number, because the mean of its divisors is an integer number (16646476).

Almost surely, 2^166464620 is an apocalyptic number.

166464620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166464620 is an abundant number, since it is smaller than the sum of its proper divisors (233050804).

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

166464620 is a wasteful number, since it uses less digits than its factorization.

166464620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189049 (or 1189047 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 166464620 is about 12902.1168805743. The cubic root of 166464620 is about 550.0987370944.

The spelling of 166464620 in words is "one hundred sixty-six million, four hundred sixty-four thousand, six hundred twenty".