166693064 has 8 divisors (see below), whose sum is σ = 312549510. Its totient is φ = 83346528.

The previous prime is 166693049. The next prime is 166693097. The reversal of 166693064 is 460396661.

166693064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 166668100 + 24964 = 12910^2 + 158^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10418309 + ... + 10418324.

Almost surely, 2^166693064 is an apocalyptic number.

It is an amenable number.

166693064 is a deficient number, since it is larger than the sum of its proper divisors (145856446).

166693064 is a wasteful number, since it uses less digits than its factorization.

166693064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20836639 (or 20836635 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 166693064 is about 12910.9668112036. The cubic root of 166693064 is about 550.3502606401.

The spelling of 166693064 in words is "one hundred sixty-six million, six hundred ninety-three thousand, sixty-four".