2656053315121 has 24 divisors (see below), whose sum is σ = 2889583139520. Its totient is φ = 2437126961472.

The previous prime is 2656053315043. The next prime is 2656053315127. The reversal of 2656053315121 is 1215133506562.

It is a happy number.

It is not a de Polignac number, because 2656053315121 - 2³⁹ = 2106297501233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656053315127) 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 23 ways as a sum of consecutive naturals, for example, 929220 + ... + 2485066.

It is an arithmetic number, because the mean of its divisors is an integer number (120399297480).

Almost surely, 2^{2656053315121} is an apocalyptic number.

It is an amenable number.

2656053315121 is a deficient number, since it is larger than the sum of its proper divisors (233529824399).

2656053315121 is a wasteful number, since it uses less digits than its factorization.

2656053315121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555993 (or 1555956 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 2656053315121 in words is "two trillion, six hundred fifty-six billion, fifty-three million, three hundred fifteen thousand, one hundred twenty-one".