2156333506011 has 12 divisors (see below), whose sum is σ = 3117667529080. Its totient is φ = 1436187866400.

The previous prime is 2156333506007. The next prime is 2156333506051. The reversal of 2156333506011 is 1106053336512.

2156333506011 is a `hidden beast` number, since 2 + 1 + 5 + 633 + 3 + 5 + 0 + 6 + 0 + 11 = 666.

It is not a de Polignac number, because 2156333506011 - 2² = 2156333506007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156333506051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113973706 + ... + 113992623.

Almost surely, 2^{2156333506011} is an apocalyptic number.

2156333506011 is a deficient number, since it is larger than the sum of its proper divisors (961334023069).

2156333506011 is a wasteful number, since it uses less digits than its factorization.

2156333506011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227967386 (or 227967383 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 2156333506011 in words is "two trillion, one hundred fifty-six billion, three hundred thirty-three million, five hundred six thousand, eleven".