2644361004156 has 192 divisors, whose sum is σ = 6882615484416. Its totient is φ = 787405132800.

The previous prime is 2644361004139. The next prime is 2644361004199. The reversal of 2644361004156 is 6514001634462.

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, 27613750 + ... + 27709346.

It is an arithmetic number, because the mean of its divisors is an integer number (35846955648).

Almost surely, 2^{2644361004156} 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 2644361004156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3441307742208).

2644361004156 is an abundant number, since it is smaller than the sum of its proper divisors (4238254480260).

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

2644361004156 is a wasteful number, since it uses less digits than its factorization.

2644361004156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95772 (or 95770 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 2644361004156 in words is "two trillion, six hundred forty-four billion, three hundred sixty-one million, four thousand, one hundred fifty-six".