2156320534350 has 96 divisors (see below), whose sum is σ = 5371648335360. Its totient is φ = 572442474240.

The previous prime is 2156320534349. The next prime is 2156320534351. The reversal of 2156320534350 is 534350236512.

It is an interprime number because it is at equal distance from previous prime (2156320534349) and next prime (2156320534351).

It is a junction number, because it is equal to n+sod(n) for n = 2156320534299 and 2156320534308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156320534351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160708842 + ... + 160722258.

It is an arithmetic number, because the mean of its divisors is an integer number (55954670160).

Almost surely, 2^{2156320534350} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156320534350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685824167680).

2156320534350 is an abundant number, since it is smaller than the sum of its proper divisors (3215327801010).

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

2156320534350 is a wasteful number, since it uses less digits than its factorization.

2156320534350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154 (or 18149 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 2156320534350 in words is "two trillion, one hundred fifty-six billion, three hundred twenty million, five hundred thirty-four thousand, three hundred fifty".