36651585631 has 2 divisors, whose sum is σ = 36651585632. Its totient is φ = 36651585630.

The previous prime is 36651585617. The next prime is 36651585643. The reversal of 36651585631 is 13658515663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36651585631 - 2¹⁵ = 36651552863 is a prime.

It is a super-2 number, since 2×36651585631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36651585661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18325792815 + 18325792816.

It is an arithmetic number, because the mean of its divisors is an integer number (18325792816).

Almost surely, 2^36651585631 is an apocalyptic number.

36651585631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36651585631 is an equidigital number, since it uses as much as digits as its factorization.

36651585631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 49.

The spelling of 36651585631 in words is "thirty-six billion, six hundred fifty-one million, five hundred eighty-five thousand, six hundred thirty-one".