36818186661 has 16 divisors (see below), whose sum is σ = 55045883200. Its totient is φ = 24320268144.

The previous prime is 36818186659. The next prime is 36818186663. The reversal of 36818186661 is 16668181863.

It is an interprime number because it is at equal distance from previous prime (36818186659) and next prime (36818186663).

It is not a de Polignac number, because 36818186661 - 2¹ = 36818186659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36818186598 and 36818186607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36818186663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6252271 + ... + 6258156.

It is an arithmetic number, because the mean of its divisors is an integer number (3440367700).

Almost surely, 2^36818186661 is an apocalyptic number.

It is an amenable number.

36818186661 is a deficient number, since it is larger than the sum of its proper divisors (18227696539).

36818186661 is a wasteful number, since it uses less digits than its factorization.

36818186661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510545 (or 12510539 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The spelling of 36818186661 in words is "thirty-six billion, eight hundred eighteen million, one hundred eighty-six thousand, six hundred sixty-one".