320278118472 has 128 divisors (see below), whose sum is σ = 958279593600. Its totient is φ = 98528327424.

The previous prime is 320278118453. The next prime is 320278118477. The reversal of 320278118472 is 274811872023.

320278118472 is a `hidden beast` number, since 320 + 2 + 7 + 81 + 184 + 72 = 666.

It is a super-2 number, since 2×320278118472² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320278118477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24807843 + ... + 24820749.

It is an arithmetic number, because the mean of its divisors is an integer number (7486559325).

Almost surely, 2^320278118472 is an apocalyptic number.

It is an amenable number.

320278118472 is an abundant number, since it is smaller than the sum of its proper divisors (638001475128).

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

320278118472 is a wasteful number, since it uses less digits than its factorization.

320278118472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21772 (or 21762 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 320278118472 in words is "three hundred twenty billion, two hundred seventy-eight million, one hundred eighteen thousand, four hundred seventy-two".