166425677 has 8 divisors (see below), whose sum is σ = 189449280. Its totient is φ = 144717760.

The previous prime is 166425661. The next prime is 166425689. The reversal of 166425677 is 776524661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166425677 - 2⁴ = 166425661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166425647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328652 + ... + 329157.

It is an arithmetic number, because the mean of its divisors is an integer number (23681160).

Almost surely, 2^166425677 is an apocalyptic number.

It is an amenable number.

166425677 is a deficient number, since it is larger than the sum of its proper divisors (23023603).

166425677 is a wasteful number, since it uses less digits than its factorization.

166425677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657843.

The product of its digits is 423360, while the sum is 44.

The square root of 166425677 is about 12900.6076213487. The cubic root of 166425677 is about 550.0558367554.

The spelling of 166425677 in words is "one hundred sixty-six million, four hundred twenty-five thousand, six hundred seventy-seven".