36660681844 has 12 divisors (see below), whose sum is σ = 64157875684. Its totient is φ = 18329860224.

The previous prime is 36660681817. The next prime is 36660681961. The reversal of 36660681844 is 44818606663.

It can be written as a sum of positive squares in 2 ways, for example, as 35123257744 + 1537424100 = 187412^2 + 39210^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 36660681791 and 36660681800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93724 + ... + 286540.

Almost surely, 2^36660681844 is an apocalyptic number.

It is an amenable number.

36660681844 is a deficient number, since it is larger than the sum of its proper divisors (27497193840).

36660681844 is a wasteful number, since it uses less digits than its factorization.

36660681844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240354 (or 240352 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 36660681844 in words is "thirty-six billion, six hundred sixty million, six hundred eighty-one thousand, eight hundred forty-four".