2156610234 has 16 divisors (see below), whose sum is σ = 4315059072. Its totient is φ = 718563648.

The previous prime is 2156610233. The next prime is 2156610283. The reversal of 2156610234 is 4320166512.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2156610233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61119 + ... + 89714.

It is an arithmetic number, because the mean of its divisors is an integer number (269691192).

Almost surely, 2^2156610234 is an apocalyptic number.

2156610234 is an abundant number, since it is smaller than the sum of its proper divisors (2158448838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156610234 is a wasteful number, since it uses less digits than its factorization.

2156610234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153221.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2156610234 is about 46439.3177598466. The cubic root of 2156610234 is about 1291.9842535471.

Adding to 2156610234 its reverse (4320166512), we get a palindrome (6476776746).

The spelling of 2156610234 in words is "two billion, one hundred fifty-six million, six hundred ten thousand, two hundred thirty-four".