165828657 has 8 divisors (see below), whose sum is σ = 221215840. Its totient is φ = 110496960.

The previous prime is 165828629. The next prime is 165828667. The reversal of 165828657 is 756828561.

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

It is not a de Polignac number, because 165828657 - 2⁸ = 165828401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165828617) 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, 6307 + ... + 19272.

It is an arithmetic number, because the mean of its divisors is an integer number (27651980).

Almost surely, 2^165828657 is an apocalyptic number.

It is an amenable number.

165828657 is a deficient number, since it is larger than the sum of its proper divisors (55387183).

165828657 is a wasteful number, since it uses less digits than its factorization.

165828657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27743.

The product of its digits is 806400, while the sum is 48.

The square root of 165828657 is about 12877.4476120076. The cubic root of 165828657 is about 549.3973089573.

The spelling of 165828657 in words is "one hundred sixty-five million, eight hundred twenty-eight thousand, six hundred fifty-seven".