2156332121434 has 64 divisors (see below), whose sum is σ = 3503242828800. Its totient is φ = 992142732672.

The previous prime is 2156332121429. The next prime is 2156332121441. The reversal of 2156332121434 is 4341212336512.

It is a super-3 number, since 3×2156332121434³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2156332121393 and 2156332121402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349880437 + ... + 349886599.

It is an arithmetic number, because the mean of its divisors is an integer number (54738169200).

Almost surely, 2^{2156332121434} is an apocalyptic number.

2156332121434 is a deficient number, since it is larger than the sum of its proper divisors (1346910707366).

2156332121434 is a wasteful number, since it uses less digits than its factorization.

2156332121434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379.

The product of its digits is 103680, while the sum is 37.

Adding to 2156332121434 its reverse (4341212336512), we get a palindrome (6497544457946).

The spelling of 2156332121434 in words is "two trillion, one hundred fifty-six billion, three hundred thirty-two million, one hundred twenty-one thousand, four hundred thirty-four".