166805464 has 32 divisors (see below), whose sum is σ = 358560000. Its totient is φ = 71264160.

The previous prime is 166805447. The next prime is 166805489. The reversal of 166805464 is 464508661.

It is a happy number.

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, 14037 + ... + 23035.

It is an arithmetic number, because the mean of its divisors is an integer number (11205000).

Almost surely, 2^166805464 is an apocalyptic number.

166805464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166805464 is an abundant number, since it is smaller than the sum of its proper divisors (191754536).

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

166805464 is a wasteful number, since it uses less digits than its factorization.

166805464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343 (or 9339 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 166805464 is about 12915.3189662509. The cubic root of 166805464 is about 550.4739319940.

The spelling of 166805464 in words is "one hundred sixty-six million, eight hundred five thousand, four hundred sixty-four".