166345434 has 32 divisors (see below), whose sum is σ = 371232000. Its totient is φ = 55212192.

The previous prime is 166345427. The next prime is 166345447. The reversal of 166345434 is 434543661.

166345434 is a `hidden beast` number, since 16 + 634 + 5 + 4 + 3 + 4 = 666.

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, 6462 + ... + 19350.

It is an arithmetic number, because the mean of its divisors is an integer number (11601000).

Almost surely, 2^166345434 is an apocalyptic number.

166345434 is an abundant number, since it is smaller than the sum of its proper divisors (204886566).

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

166345434 is a wasteful number, since it uses less digits than its factorization.

166345434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139 (or 13133 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 166345434 is about 12897.4971990693. The cubic root of 166345434 is about 549.9674184556.

The spelling of 166345434 in words is "one hundred sixty-six million, three hundred forty-five thousand, four hundred thirty-four".