165970497 has 96 divisors (see below), whose sum is σ = 299622400. Its totient is φ = 81496800.

The previous prime is 165970477. The next prime is 165970499. The reversal of 165970497 is 794079561.

It is a happy number.

It is not a de Polignac number, because 165970497 - 2⁶ = 165970433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165970499) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3859758 + ... + 3859800.

Almost surely, 2^165970497 is an apocalyptic number.

It is an amenable number.

165970497 is a deficient number, since it is larger than the sum of its proper divisors (133651903).

165970497 is a wasteful number, since it uses less digits than its factorization.

165970497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 165970497 is about 12882.9537374004. The cubic root of 165970497 is about 549.5539049449.

The spelling of 165970497 in words is "one hundred sixty-five million, nine hundred seventy thousand, four hundred ninety-seven".