36621404432536 has 256 divisors, whose sum is σ = 90230215680000. Its totient is φ = 13799136960000.

The previous prime is 36621404432497. The next prime is 36621404432593. The reversal of 36621404432536 is 63523440412663.

It is a super-2 number, since 2×36621404432536² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 36621404432536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1599106686 + ... + 1599129586.

It is an arithmetic number, because the mean of its divisors is an integer number (352461780000).

Almost surely, 2^{36621404432536} 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 36621404432536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45115107840000).

36621404432536 is an abundant number, since it is smaller than the sum of its proper divisors (53608811247464).

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

36621404432536 is a wasteful number, since it uses less digits than its factorization.

36621404432536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24679 (or 24661 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 36621404432536 in words is "thirty-six trillion, six hundred twenty-one billion, four hundred four million, four hundred thirty-two thousand, five hundred thirty-six".