36813910661 has 8 divisors (see below), whose sum is σ = 40328668800. Its totient is φ = 33327159040.

The previous prime is 36813910657. The next prime is 36813910663. The reversal of 36813910661 is 16601931863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36813910661 - 2² = 36813910657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36813910663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6998876 + ... + 7004133.

It is an arithmetic number, because the mean of its divisors is an integer number (5041083600).

Almost surely, 2^36813910661 is an apocalyptic number.

It is an amenable number.

36813910661 is a deficient number, since it is larger than the sum of its proper divisors (3514758139).

36813910661 is a wasteful number, since it uses less digits than its factorization.

36813910661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003259.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 36813910661 in words is "thirty-six billion, eight hundred thirteen million, nine hundred ten thousand, six hundred sixty-one".