165622056 has 16 divisors (see below), whose sum is σ = 414055200. Its totient is φ = 55207344.

The previous prime is 165622013. The next prime is 165622063. The reversal of 165622056 is 650226561.

It is a happy number.

165622056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450436 + ... + 3450483.

It is an arithmetic number, because the mean of its divisors is an integer number (25878450).

Almost surely, 2^165622056 is an apocalyptic number.

It is an amenable number.

165622056 is an abundant number, since it is smaller than the sum of its proper divisors (248433144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165622056 is a wasteful number, since it uses less digits than its factorization.

165622056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900928 (or 6900924 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 165622056 is about 12869.4232971023. The cubic root of 165622056 is about 549.1690548745.

The spelling of 165622056 in words is "one hundred sixty-five million, six hundred twenty-two thousand, fifty-six".