36805166388 has 36 divisors (see below), whose sum is σ = 93956432388. Its totient is φ = 12146918400.

The previous prime is 36805166357. The next prime is 36805166389. The reversal of 36805166388 is 88366150863.

36805166388 is a `hidden beast` number, since 3 + 68 + 0 + 516 + 63 + 8 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18873813924 + 17931352464 = 137382^2 + 133908^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36805166389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5057581 + ... + 5064852.

Almost surely, 2^36805166388 is an apocalyptic number.

It is an amenable number.

36805166388 is an abundant number, since it is smaller than the sum of its proper divisors (57151266000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36805166388 is a wasteful number, since it uses less digits than its factorization.

36805166388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122544 (or 10122539 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 36805166388 in words is "thirty-six billion, eight hundred five million, one hundred sixty-six thousand, three hundred eighty-eight".