320632642501 has 4 divisors (see below), whose sum is σ = 320702853472. Its totient is φ = 320562431532.

The previous prime is 320632642487. The next prime is 320632642507. The reversal of 320632642501 is 105246236023.

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 a cyclic number.

It is not a de Polignac number, because 320632642501 - 2²⁷ = 320498424773 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 (320632642507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35098635 + ... + 35107768.

It is an arithmetic number, because the mean of its divisors is an integer number (80175713368).

Almost surely, 2^320632642501 is an apocalyptic number.

It is an amenable number.

320632642501 is a deficient number, since it is larger than the sum of its proper divisors (70210971).

320632642501 is an equidigital number, since it uses as much as digits as its factorization.

320632642501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70210970.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 320632642501 its reverse (105246236023), we get a palindrome (425878878524).

The spelling of 320632642501 in words is "three hundred twenty billion, six hundred thirty-two million, six hundred forty-two thousand, five hundred one".