36640699651 has 2 divisors, whose sum is σ = 36640699652. Its totient is φ = 36640699650.

The previous prime is 36640699649. The next prime is 36640699661. The reversal of 36640699651 is 15699604663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36640699651 - 2¹ = 36640699649 is a prime.

Together with 36640699649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 36640699592 and 36640699601.

It is not a weakly prime, because it can be changed into another prime (36640699621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18320349825 + 18320349826.

It is an arithmetic number, because the mean of its divisors is an integer number (18320349826).

Almost surely, 2^36640699651 is an apocalyptic number.

36640699651 is a deficient number, since it is larger than the sum of its proper divisors (1).

36640699651 is an equidigital number, since it uses as much as digits as its factorization.

36640699651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 55.

It can be divided in two parts, 36640 and 699651, that added together give a triangular number (736291 = T₁₂₁₃).

The spelling of 36640699651 in words is "thirty-six billion, six hundred forty million, six hundred ninety-nine thousand, six hundred fifty-one".