36393856664 has 64 divisors (see below), whose sum is σ = 75208919040. Its totient is φ = 16372661760.

The previous prime is 36393856643. The next prime is 36393856699. The reversal of 36393856664 is 46665839363.

36393856664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8181689 + ... + 8186135.

It is an arithmetic number, because the mean of its divisors is an integer number (1175139360).

Almost surely, 2^36393856664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36393856664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37604459520).

36393856664 is an abundant number, since it is smaller than the sum of its proper divisors (38815062376).

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

36393856664 is a wasteful number, since it uses less digits than its factorization.

36393856664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400 (or 5396 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 59.

The spelling of 36393856664 in words is "thirty-six billion, three hundred ninety-three million, eight hundred fifty-six thousand, six hundred sixty-four".