636043113140552 has 96 divisors (see below), whose sum is σ = 1295780016960000. Its totient is φ = 292557260136960.

The previous prime is 636043113140459. The next prime is 636043113140597. The reversal of 636043113140552 is 255041311340636.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2190093449 + ... + 2190383847.

It is an arithmetic number, because the mean of its divisors is an integer number (13497708510000).

Almost surely, 2^{636043113140552} 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 636043113140552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647890008480000).

636043113140552 is an abundant number, since it is smaller than the sum of its proper divisors (659736903819448).

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

636043113140552 is a wasteful number, since it uses less digits than its factorization.

636043113140552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295951 (or 295934 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 636043113140552 in words is "six hundred thirty-six trillion, forty-three billion, one hundred thirteen million, one hundred forty thousand, five hundred fifty-two".