2196557896 has 48 divisors (see below), whose sum is σ = 4722113700. Its totient is φ = 954150912.

The previous prime is 2196557893. The next prime is 2196557939. The reversal of 2196557896 is 6987556912.

It can be written as a sum of positive squares in 6 ways, for example, as 70056900 + 2126500996 = 8370^2 + 46114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2196557896.

It is not an unprimeable number, because it can be changed into a prime (2196557893) 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, 24801 + ... + 70768.

Almost surely, 2^2196557896 is an apocalyptic number.

2196557896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2196557896 is an abundant number, since it is smaller than the sum of its proper divisors (2525555804).

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

2196557896 is a wasteful number, since it uses less digits than its factorization.

2196557896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95618 (or 95601 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 58.

The square root of 2196557896 is about 46867.4502826855. The cubic root of 2196557896 is about 1299.9127941502.

The spelling of 2196557896 in words is "two billion, one hundred ninety-six million, five hundred fifty-seven thousand, eight hundred ninety-six".