320672548275 has 36 divisors (see below), whose sum is σ = 561400989912. Its totient is φ = 160954894080.

The previous prime is 320672548271. The next prime is 320672548303. The reversal of 320672548275 is 572845276023.

It is not a de Polignac number, because 320672548275 - 2² = 320672548271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (320672548271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20212296 + ... + 20228154.

It is an arithmetic number, because the mean of its divisors is an integer number (15594471942).

Almost surely, 2^320672548275 is an apocalyptic number.

320672548275 is a deficient number, since it is larger than the sum of its proper divisors (240728441637).

320672548275 is an frugal number, since it uses more digits than its factorization.

320672548275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31748 (or 15884 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 51.

Multiplying 320672548275 by its sum of digits (51), we get a square (16354299962025 = 4044045²).

320672548275 divided by its sum of digits (51) gives a square (6287697025 = 79295²).

The spelling of 320672548275 in words is "three hundred twenty billion, six hundred seventy-two million, five hundred forty-eight thousand, two hundred seventy-five".