2156250354312 has 256 divisors, whose sum is σ = 5836144608000. Its totient is φ = 661469921280.

The previous prime is 2156250354283. The next prime is 2156250354317. The reversal of 2156250354312 is 2134530526512.

It is not an unprimeable number, because it can be changed into a prime (2156250354317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1244228998 + ... + 1244230730.

It is an arithmetic number, because the mean of its divisors is an integer number (22797439875).

Almost surely, 2^{2156250354312} 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 2156250354312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2918072304000).

2156250354312 is an abundant number, since it is smaller than the sum of its proper divisors (3679894253688).

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

2156250354312 is a wasteful number, since it uses less digits than its factorization.

2156250354312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 2156250354312 in words is "two trillion, one hundred fifty-six billion, two hundred fifty million, three hundred fifty-four thousand, three hundred twelve".