162220556 has 24 divisors (see below), whose sum is σ = 300175680. Its totient is φ = 76494672.

The previous prime is 162220549. The next prime is 162220589. The reversal of 162220556 is 655022261.

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, 12551 + ... + 21953.

It is an arithmetic number, because the mean of its divisors is an integer number (12507320).

Almost surely, 2^162220556 is an apocalyptic number.

It is an amenable number.

162220556 is a deficient number, since it is larger than the sum of its proper divisors (137955124).

162220556 is a wasteful number, since it uses less digits than its factorization.

162220556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653 (or 9651 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 162220556 is about 12736.5833723177. The cubic root of 162220556 is about 545.3834587798.

It can be divided in two parts, 1622205 and 56, that added together give a palindrome (1622261).

The spelling of 162220556 in words is "one hundred sixty-two million, two hundred twenty thousand, five hundred fifty-six".