166486652425 has 12 divisors (see below), whose sum is σ = 213102916096. Its totient is φ = 128892891600.

The previous prime is 166486652401. The next prime is 166486652473. The reversal of 166486652425 is 524256684661.

It is not a de Polignac number, because 166486652425 - 2³³ = 157896717833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107409969 + ... + 107411518.

Almost surely, 2^166486652425 is an apocalyptic number.

It is an amenable number.

166486652425 is a deficient number, since it is larger than the sum of its proper divisors (46616263671).

166486652425 is a wasteful number, since it uses less digits than its factorization.

166486652425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214821528 (or 214821523 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 55.

The spelling of 166486652425 in words is "one hundred sixty-six billion, four hundred eighty-six million, six hundred fifty-two thousand, four hundred twenty-five".