2156834196 has 72 divisors (see below), whose sum is σ = 6146387520. Its totient is φ = 653582160.

The previous prime is 2156834189. The next prime is 2156834201. The reversal of 2156834196 is 6914386512.

2156834196 is a `hidden beast` number, since 2 + 156 + 83 + 419 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69456 + ... + 95591.

Almost surely, 2^2156834196 is an apocalyptic number.

It is an amenable number.

2156834196 is an abundant number, since it is smaller than the sum of its proper divisors (3989553324).

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

2156834196 is a wasteful number, since it uses less digits than its factorization.

2156834196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165082 (or 165063 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 2156834196 is about 46441.7290375800. The cubic root of 2156834196 is about 1292.0289757933.

The spelling of 2156834196 in words is "two billion, one hundred fifty-six million, eight hundred thirty-four thousand, one hundred ninety-six".