166077664 has 96 divisors (see below), whose sum is σ = 365783040. Its totient is φ = 73920000.

The previous prime is 166077643. The next prime is 166077683. The reversal of 166077664 is 466770661.

It is a self number, because there is not a number n which added to its sum of digits gives 166077664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661539 + ... + 661789.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^166077664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166077664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182891520).

166077664 is an abundant number, since it is smaller than the sum of its proper divisors (199705376).

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

166077664 is a wasteful number, since it uses less digits than its factorization.

166077664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 166077664 is about 12887.1123220060. The cubic root of 166077664 is about 549.6721616491.

The spelling of 166077664 in words is "one hundred sixty-six million, seventy-seven thousand, six hundred sixty-four".