2156304120736 has 48 divisors (see below), whose sum is σ = 4250714751360. Its totient is φ = 1076758087680.

The previous prime is 2156304120673. The next prime is 2156304120743. The reversal of 2156304120736 is 6370214036512.

It is a happy number.

It is a super-2 number, since 2×2156304120736² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247306585 + ... + 247315303.

It is an arithmetic number, because the mean of its divisors is an integer number (88556557320).

Almost surely, 2^{2156304120736} is an apocalyptic number.

It is an amenable number.

2156304120736 is a deficient number, since it is larger than the sum of its proper divisors (2094410630624).

2156304120736 is an equidigital number, since it uses as much as digits as its factorization.

2156304120736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17837 (or 17829 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 2156304120736 in words is "two trillion, one hundred fifty-six billion, three hundred four million, one hundred twenty thousand, seven hundred thirty-six".