165622456 has 32 divisors (see below), whose sum is σ = 319742640. Its totient is φ = 80391168.

The previous prime is 165622453. The next prime is 165622469. The reversal of 165622456 is 654226561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165622453) 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, 39115 + ... + 43141.

Almost surely, 2^165622456 is an apocalyptic number.

It is an amenable number.

165622456 is a deficient number, since it is larger than the sum of its proper divisors (154120184).

165622456 is a wasteful number, since it uses less digits than its factorization.

165622456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183 (or 4179 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 165622456 is about 12869.4388378049. The cubic root of 165622456 is about 549.1694969803.

The spelling of 165622456 in words is "one hundred sixty-five million, six hundred twenty-two thousand, four hundred fifty-six".