320664151157 has 4 divisors (see below), whose sum is σ = 366473315616. Its totient is φ = 274854986700.

The previous prime is 320664151139. The next prime is 320664151177. The reversal of 320664151157 is 751151466023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 320664151157 - 2²⁴ = 320647373941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320664151177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22904582219 + ... + 22904582232.

It is an arithmetic number, because the mean of its divisors is an integer number (91618328904).

Almost surely, 2^320664151157 is an apocalyptic number.

It is an amenable number.

320664151157 is a deficient number, since it is larger than the sum of its proper divisors (45809164459).

320664151157 is an equidigital number, since it uses as much as digits as its factorization.

320664151157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45809164458.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 320664151157 in words is "three hundred twenty billion, six hundred sixty-four million, one hundred fifty-one thousand, one hundred fifty-seven".