166343964 has 12 divisors (see below), whose sum is σ = 388135944. Its totient is φ = 55447984.

The previous prime is 166343939. The next prime is 166343977. The reversal of 166343964 is 469343661.

166343964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6930987 + ... + 6931010.

It is an arithmetic number, because the mean of its divisors is an integer number (32344662).

Almost surely, 2^166343964 is an apocalyptic number.

It is an amenable number.

166343964 is an abundant number, since it is smaller than the sum of its proper divisors (221791980).

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

166343964 is a wasteful number, since it uses less digits than its factorization.

166343964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862004 (or 13862002 counting only the distinct ones).

The product of its digits is 279936, while the sum is 42.

The square root of 166343964 is about 12897.4402111427. The cubic root of 166343964 is about 549.9657984242.

The spelling of 166343964 in words is "one hundred sixty-six million, three hundred forty-three thousand, nine hundred sixty-four".