662081580931 has 2 divisors, whose sum is σ = 662081580932. Its totient is φ = 662081580930.

The previous prime is 662081580929. The next prime is 662081581087. The reversal of 662081580931 is 139085180266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662081580931 - 2¹ = 662081580929 is a prime.

It is a super-2 number, since 2×662081580931² (a number of 24 digits) contains 22 as substring.

Together with 662081580929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (662081580631) 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 as a sum of consecutive naturals, namely, 331040790465 + 331040790466.

It is an arithmetic number, because the mean of its divisors is an integer number (331040790466).

Almost surely, 2^662081580931 is an apocalyptic number.

662081580931 is a deficient number, since it is larger than the sum of its proper divisors (1).

662081580931 is an equidigital number, since it uses as much as digits as its factorization.

662081580931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 662081580931 in words is "six hundred sixty-two billion, eighty-one million, five hundred eighty thousand, nine hundred thirty-one".