255130620661 has 32 divisors (see below), whose sum is σ = 303100704000. Its totient is φ = 210116562432.

The previous prime is 255130620599. The next prime is 255130620683. The reversal of 255130620661 is 166026031552.

It is not a de Polignac number, because 255130620661 - 2⁷ = 255130620533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255130620661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255130620161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59901750 + ... + 59906008.

It is an arithmetic number, because the mean of its divisors is an integer number (9471897000).

Almost surely, 2^255130620661 is an apocalyptic number.

It is an amenable number.

255130620661 is a deficient number, since it is larger than the sum of its proper divisors (47970083339).

255130620661 is a wasteful number, since it uses less digits than its factorization.

255130620661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 255130620661 in words is "two hundred fifty-five billion, one hundred thirty million, six hundred twenty thousand, six hundred sixty-one".