3635996664512 has 224 divisors, whose sum is σ = 8030328465600. Its totient is φ = 1625644597248.

The previous prime is 3635996664497. The next prime is 3635996664583. The reversal of 3635996664512 is 2154666995363.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547834058 + ... + 547840694.

It is an arithmetic number, because the mean of its divisors is an integer number (35849680650).

Almost surely, 2^{3635996664512} is an apocalyptic number.

3635996664512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3635996664512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015164232800).

3635996664512 is an abundant number, since it is smaller than the sum of its proper divisors (4394331801088).

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

3635996664512 is a wasteful number, since it uses less digits than its factorization.

3635996664512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971 (or 6961 counting only the distinct ones).

The product of its digits is 188956800, while the sum is 65.

The spelling of 3635996664512 in words is "three trillion, six hundred thirty-five billion, nine hundred ninety-six million, six hundred sixty-four thousand, five hundred twelve".