320162331126261 has 12 divisors (see below), whose sum is σ = 462246205887168. Its totient is φ = 197022973000464.

The previous prime is 320162331126251. The next prime is 320162331126269. The reversal of 320162331126261 is 162621133261023.

It is not a de Polignac number, because 320162331126261 - 2⁵ = 320162331126229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320162331126269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315741943405 + ... + 315741944418.

It is an arithmetic number, because the mean of its divisors is an integer number (38520517157264).

Almost surely, 2^{320162331126261} is an apocalyptic number.

It is an amenable number.

320162331126261 is a deficient number, since it is larger than the sum of its proper divisors (142083874760907).

320162331126261 is a wasteful number, since it uses less digits than its factorization.

320162331126261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631483887852 (or 631483887839 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

Adding to 320162331126261 its reverse (162621133261023), we get a palindrome (482783464387284).

The spelling of 320162331126261 in words is "three hundred twenty trillion, one hundred sixty-two billion, three hundred thirty-one million, one hundred twenty-six thousand, two hundred sixty-one".