2156413511 has 12 divisors (see below), whose sum is σ = 2521489392. Its totient is φ = 1838769408.

The previous prime is 2156413487. The next prime is 2156413541. The reversal of 2156413511 is 1153146512.

It is a de Polignac number, because none of the positive numbers 2^k-2156413511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156413541) 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, 104555 + ... + 123468.

It is an arithmetic number, because the mean of its divisors is an integer number (210124116).

Almost surely, 2^2156413511 is an apocalyptic number.

2156413511 is a deficient number, since it is larger than the sum of its proper divisors (365075881).

2156413511 is a wasteful number, since it uses less digits than its factorization.

2156413511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228230 (or 228223 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 2156413511 is about 46437.1996464042. The cubic root of 2156413511 is about 1291.9449680142.

The spelling of 2156413511 in words is "two billion, one hundred fifty-six million, four hundred thirteen thousand, five hundred eleven".