321162168272 has 40 divisors (see below), whose sum is σ = 679341489600. Its totient is φ = 145870663680.

The previous prime is 321162168269. The next prime is 321162168277. The reversal of 321162168272 is 272861261123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321162168277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470897 + ... + 929552.

It is an arithmetic number, because the mean of its divisors is an integer number (16983537240).

Almost surely, 2^321162168272 is an apocalyptic number.

It is an amenable number.

321162168272 is an abundant number, since it is smaller than the sum of its proper divisors (358179321328).

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

321162168272 is a wasteful number, since it uses less digits than its factorization.

321162168272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401771 (or 1401765 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The spelling of 321162168272 in words is "three hundred twenty-one billion, one hundred sixty-two million, one hundred sixty-eight thousand, two hundred seventy-two".