255606654121 has 48 divisors (see below), whose sum is σ = 322523510400. Its totient is φ = 201975804576.

The previous prime is 255606654119. The next prime is 255606654151. The reversal of 255606654121 is 121456606552.

It is not a de Polignac number, because 255606654121 - 2¹ = 255606654119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255606654151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163954740 + ... + 163956298.

It is an arithmetic number, because the mean of its divisors is an integer number (6719239800).

Almost surely, 2^255606654121 is an apocalyptic number.

It is an amenable number.

255606654121 is a deficient number, since it is larger than the sum of its proper divisors (66916856279).

255606654121 is a wasteful number, since it uses less digits than its factorization.

255606654121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 255606654121 in words is "two hundred fifty-five billion, six hundred six million, six hundred fifty-four thousand, one hundred twenty-one".