3636420365680 has 80 divisors (see below), whose sum is σ = 8467402721184. Its totient is φ = 1452380533760.

The previous prime is 3636420365671. The next prime is 3636420365687. The reversal of 3636420365680 is 865630246363.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636420365687) 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, 153158610 + ... + 153182350.

Almost surely, 2^{3636420365680} is an apocalyptic number.

It is an amenable number.

3636420365680 is an abundant number, since it is smaller than the sum of its proper divisors (4830982355504).

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

3636420365680 is a wasteful number, since it uses less digits than its factorization.

3636420365680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26554 (or 26548 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 3636420365680 in words is "three trillion, six hundred thirty-six billion, four hundred twenty million, three hundred sixty-five thousand, six hundred eighty".