2656554865 has 8 divisors (see below), whose sum is σ = 3189323520. Its totient is φ = 2124272112.

The previous prime is 2656554853. The next prime is 2656554877. The reversal of 2656554865 is 5684556562.

It is an interprime number because it is at equal distance from previous prime (2656554853) and next prime (2656554877).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2656554865 - 2²⁷ = 2522337137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109335 + ... + 131404.

It is an arithmetic number, because the mean of its divisors is an integer number (398665440).

Almost surely, 2^2656554865 is an apocalyptic number.

It is an amenable number.

2656554865 is a deficient number, since it is larger than the sum of its proper divisors (532768655).

2656554865 is a wasteful number, since it uses less digits than its factorization.

2656554865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242951.

The product of its digits is 8640000, while the sum is 52.

The square root of 2656554865 is about 51541.7778602950. Note that the first 3 decimals coincide. The cubic root of 2656554865 is about 1384.9675456257.

The spelling of 2656554865 in words is "two billion, six hundred fifty-six million, five hundred fifty-four thousand, eight hundred sixty-five".