2156304215426 has 8 divisors (see below), whose sum is σ = 3244228095504. Its totient is φ = 1074894850260.

The previous prime is 2156304215419. The next prime is 2156304215447. The reversal of 2156304215426 is 6245124036512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2156304215426² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1628627900 + ... + 1628629223.

It is an arithmetic number, because the mean of its divisors is an integer number (405528511938).

Almost surely, 2^{2156304215426} is an apocalyptic number.

2156304215426 is a deficient number, since it is larger than the sum of its proper divisors (1087923880078).

2156304215426 is a wasteful number, since it uses less digits than its factorization.

2156304215426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257257456.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 2156304215426 in words is "two trillion, one hundred fifty-six billion, three hundred four million, two hundred fifteen thousand, four hundred twenty-six".