166201343164 has 12 divisors (see below), whose sum is σ = 290984391544. Its totient is φ = 83062945584.

The previous prime is 166201343129. The next prime is 166201343179. The reversal of 166201343164 is 461343102661.

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, 9421587 + ... + 9439210.

Almost surely, 2^166201343164 is an apocalyptic number.

It is an amenable number.

166201343164 is a deficient number, since it is larger than the sum of its proper divisors (124783048380).

166201343164 is a wasteful number, since it uses less digits than its factorization.

166201343164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18863004 (or 18863002 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 166201343164 in words is "one hundred sixty-six billion, two hundred one million, three hundred forty-three thousand, one hundred sixty-four".