2656343216 has 20 divisors (see below), whose sum is σ = 5147492712. Its totient is φ = 1327958016.

The previous prime is 2656343213. The next prime is 2656343231. The reversal of 2656343216 is 6123436562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2656343216.

It is not an unprimeable number, because it can be changed into a prime (2656343213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149291 + ... + 166133.

Almost surely, 2^2656343216 is an apocalyptic number.

It is an amenable number.

2656343216 is a deficient number, since it is larger than the sum of its proper divisors (2491149496).

2656343216 is a wasteful number, since it uses less digits than its factorization.

2656343216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26708 (or 26702 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 2656343216 is about 51539.7246403199. The cubic root of 2656343216 is about 1384.9307643061.

Adding to 2656343216 its reverse (6123436562), we get a palindrome (8779779778).

The spelling of 2656343216 in words is "two billion, six hundred fifty-six million, three hundred forty-three thousand, two hundred sixteen".