320225623236 has 30 divisors (see below), whose sum is σ = 837133034430. Its totient is φ = 106741874304.

The previous prime is 320225623213. The next prime is 320225623253. The reversal of 320225623236 is 632326522023.

320225623236 is a `hidden beast` number, since 3 + 2 + 0 + 2 + 2 + 5 + 623 + 23 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 291444500736 + 28781122500 = 539856^2 + 169650^2 .

It is a super-2 number, since 2×320225623236² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 320225623236.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 494175021 + ... + 494175668.

It is an arithmetic number, because the mean of its divisors is an integer number (27904434481).

Almost surely, 2^320225623236 is an apocalyptic number.

320225623236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320225623236 is an abundant number, since it is smaller than the sum of its proper divisors (516907411194).

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

320225623236 is a wasteful number, since it uses less digits than its factorization.

320225623236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988350705 (or 988350694 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 320225623236 in words is "three hundred twenty billion, two hundred twenty-five million, six hundred twenty-three thousand, two hundred thirty-six".