2654641656 has 24 divisors (see below), whose sum is σ = 7189654680. Its totient is φ = 884880528.

The previous prime is 2654641651. The next prime is 2654641657. The reversal of 2654641656 is 6561464562.

2654641656 is a `hidden beast` number, since 2 + 6 + 546 + 41 + 65 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654641651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18434940 + ... + 18435083.

It is an arithmetic number, because the mean of its divisors is an integer number (299568945).

Almost surely, 2^2654641656 is an apocalyptic number.

It is an amenable number.

2654641656 is an abundant number, since it is smaller than the sum of its proper divisors (4535013024).

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

2654641656 is a wasteful number, since it uses less digits than its factorization.

2654641656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36870035 (or 36870028 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 2654641656 is about 51523.2147288967. The cubic root of 2654641656 is about 1384.6349885031.

The spelling of 2654641656 in words is "two billion, six hundred fifty-four million, six hundred forty-one thousand, six hundred fifty-six".