2636668403712 has 1224 divisors, whose sum is σ = 9660016585440. Its totient is φ = 677778554880.

The previous prime is 2636668403701. The next prime is 2636668403779. The reversal of 2636668403712 is 2173048666362.

It is a super-2 number, since 2×2636668403712² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43224072162 + ... + 43224072222.

Almost surely, 2^{2636668403712} 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 2636668403712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4830008292720).

2636668403712 is an abundant number, since it is smaller than the sum of its proper divisors (7023348181728).

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

2636668403712 is an equidigital number, since it uses as much as digits as its factorization.

2636668403712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 2636668403712 in words is "two trillion, six hundred thirty-six billion, six hundred sixty-eight million, four hundred three thousand, seven hundred twelve".