2656556562 has 32 divisors (see below), whose sum is σ = 5952780864. Its totient is φ = 783259200.

The previous prime is 2656556537. The next prime is 2656556569.

2656556562 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2656556569) 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 15 ways as a sum of consecutive naturals, for example, 541489 + ... + 546372.

It is an arithmetic number, because the mean of its divisors is an integer number (186024402).

Almost surely, 2^2656556562 is an apocalyptic number.

2656556562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2656556562 is an abundant number, since it is smaller than the sum of its proper divisors (3296224302).

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

2656556562 is a wasteful number, since it uses less digits than its factorization.

2656556562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087914.

The product of its digits is 3240000, while the sum is 48.

The square root of 2656556562 is about 51541.7943226660. The cubic root of 2656556562 is about 1384.9678405301.

The spelling of 2656556562 in words is "two billion, six hundred fifty-six million, five hundred fifty-six thousand, five hundred sixty-two".