320162056 has 8 divisors (see below), whose sum is σ = 600303870. Its totient is φ = 160081024.

The previous prime is 320162053. The next prime is 320162069. The reversal of 320162056 is 650261023.

It can be written as a sum of positive squares in only one way, i.e., 186759556 + 133402500 = 13666^2 + 11550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 320162056.

It is not an unprimeable number, because it can be changed into a prime (320162053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010121 + ... + 20010136.

Almost surely, 2^320162056 is an apocalyptic number.

It is an amenable number.

320162056 is a deficient number, since it is larger than the sum of its proper divisors (280141814).

320162056 is a wasteful number, since it uses less digits than its factorization.

320162056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40020263 (or 40020259 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 320162056 is about 17893.0728495695. The cubic root of 320162056 is about 684.1058224608.

The spelling of 320162056 in words is "three hundred twenty million, one hundred sixty-two thousand, fifty-six".