320657761151 has 8 divisors (see below), whose sum is σ = 394655706144. Its totient is φ = 253707239520.

The previous prime is 320657761129. The next prime is 320657761159. The reversal of 320657761151 is 151167756023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-320657761151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320657761159) 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, 1761855740 + ... + 1761855921.

It is an arithmetic number, because the mean of its divisors is an integer number (49331963268).

Almost surely, 2^320657761151 is an apocalyptic number.

320657761151 is a deficient number, since it is larger than the sum of its proper divisors (73997944993).

320657761151 is a wasteful number, since it uses less digits than its factorization.

320657761151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523711681.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 320657761151 in words is "three hundred twenty billion, six hundred fifty-seven million, seven hundred sixty-one thousand, one hundred fifty-one".