12662646031 has 4 divisors (see below), whose sum is σ = 14471595472. Its totient is φ = 10853696592.

The previous prime is 12662646023. The next prime is 12662646041. The reversal of 12662646031 is 13064626621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13064626621 = 8161 ⋅1600861.

It is a cyclic number.

It is not a de Polignac number, because 12662646031 - 2³ = 12662646023 is a prime.

It is a super-2 number, since 2×12662646031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662646041) 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, 904474710 + ... + 904474723.

It is an arithmetic number, because the mean of its divisors is an integer number (3617898868).

Almost surely, 2^12662646031 is an apocalyptic number.

12662646031 is a deficient number, since it is larger than the sum of its proper divisors (1808949441).

12662646031 is an equidigital number, since it uses as much as digits as its factorization.

12662646031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808949440.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 12662646031 in words is "twelve billion, six hundred sixty-two million, six hundred forty-six thousand, thirty-one".