32664644646631 has 2 divisors, whose sum is σ = 32664644646632. Its totient is φ = 32664644646630.

The previous prime is 32664644646607. The next prime is 32664644646653. The reversal of 32664644646631 is 13664644646623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32664644646631 - 2⁷ = 32664644646503 is a prime.

It is a super-2 number, since 2×32664644646631² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32664644646631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32664644647631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16332322323315 + 16332322323316.

It is an arithmetic number, because the mean of its divisors is an integer number (16332322323316).

Almost surely, 2^{32664644646631} is an apocalyptic number.

32664644646631 is a deficient number, since it is larger than the sum of its proper divisors (1).

32664644646631 is an equidigital number, since it uses as much as digits as its factorization.

32664644646631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214990848, while the sum is 61.

The spelling of 32664644646631 in words is "thirty-two trillion, six hundred sixty-four billion, six hundred forty-four million, six hundred forty-six thousand, six hundred thirty-one".