165056386 has 16 divisors (see below), whose sum is σ = 275840640. Its totient is φ = 73428880.

The previous prime is 165056377. The next prime is 165056393. The reversal of 165056386 is 683650561.

165056386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165056386² = 54487221118761992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78781 + ... + 80848.

It is an arithmetic number, because the mean of its divisors is an integer number (17240040).

Almost surely, 2^165056386 is an apocalyptic number.

165056386 is a deficient number, since it is larger than the sum of its proper divisors (110784254).

165056386 is a wasteful number, since it uses less digits than its factorization.

165056386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159689.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 165056386 is about 12847.4272132595. The cubic root of 165056386 is about 548.5431261685.

The spelling of 165056386 in words is "one hundred sixty-five million, fifty-six thousand, three hundred eighty-six".