162643656 has 32 divisors (see below), whose sum is σ = 464696640. Its totient is φ = 46469568.

The previous prime is 162643627. The next prime is 162643661. The reversal of 162643656 is 656346261.

It is a super-3 number, since 3×162643656³ (a number of 26 digits) contains 333 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, 483891 + ... + 484226.

It is an arithmetic number, because the mean of its divisors is an integer number (14521770).

Almost surely, 2^162643656 is an apocalyptic number.

It is an amenable number.

162643656 is an abundant number, since it is smaller than the sum of its proper divisors (302052984).

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

162643656 is a wasteful number, since it uses less digits than its factorization.

162643656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968133 (or 968129 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 162643656 is about 12753.1821911239. The cubic root of 162643656 is about 545.8571994356.

The spelling of 162643656 in words is "one hundred sixty-two million, six hundred forty-three thousand, six hundred fifty-six".