2156215760336 has 80 divisors (see below), whose sum is σ = 4640648812800. Its totient is φ = 962344281600.

The previous prime is 2156215760297. The next prime is 2156215760351. The reversal of 2156215760336 is 6330675126512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088230 + ... + 2945018.

It is an arithmetic number, because the mean of its divisors is an integer number (58008110160).

Almost surely, 2^{2156215760336} 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 2156215760336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320324406400).

2156215760336 is an abundant number, since it is smaller than the sum of its proper divisors (2484433052464).

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

2156215760336 is a wasteful number, since it uses less digits than its factorization.

2156215760336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857068 (or 857062 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 2156215760336 in words is "two trillion, one hundred fifty-six billion, two hundred fifteen million, seven hundred sixty thousand, three hundred thirty-six".