2656647147 has 16 divisors (see below), whose sum is σ = 4416244992. Its totient is φ = 1380076320.

The previous prime is 2656647139. The next prime is 2656647157. The reversal of 2656647147 is 7417466562.

It is not a de Polignac number, because 2656647147 - 2³ = 2656647139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2656647096 and 2656647105.

It is not an unprimeable number, because it can be changed into a prime (2656647107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5750088 + ... + 5750549.

It is an arithmetic number, because the mean of its divisors is an integer number (276015312).

Almost surely, 2^2656647147 is an apocalyptic number.

2656647147 is a deficient number, since it is larger than the sum of its proper divisors (1759597845).

2656647147 is a wasteful number, since it uses less digits than its factorization.

2656647147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11500658.

The product of its digits is 1693440, while the sum is 48.

The square root of 2656647147 is about 51542.6730680511. The cubic root of 2656647147 is about 1384.9835821971.

The spelling of 2656647147 in words is "two billion, six hundred fifty-six million, six hundred forty-seven thousand, one hundred forty-seven".