2656317356 has 72 divisors (see below), whose sum is σ = 5893900320. Its totient is φ = 1025291520.

The previous prime is 2656317353. The next prime is 2656317359. The reversal of 2656317356 is 6537136562.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2656317353) and next prime (2656317359).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (2656317353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365696 + ... + 372888.

Almost surely, 2^2656317356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656317356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2946950160).

2656317356 is an abundant number, since it is smaller than the sum of its proper divisors (3237582964).

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

2656317356 is a wasteful number, since it uses less digits than its factorization.

2656317356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335 (or 7322 counting only the distinct ones).

The product of its digits is 680400, while the sum is 44.

The square root of 2656317356 is about 51539.4737652607. The cubic root of 2656317356 is about 1384.9262701045.

The spelling of 2656317356 in words is "two billion, six hundred fifty-six million, three hundred seventeen thousand, three hundred fifty-six".