255562450661 has 16 divisors (see below), whose sum is σ = 309268627200. Its totient is φ = 206156970240.

The previous prime is 255562450609. The next prime is 255562450679. The reversal of 255562450661 is 166054265552.

255562450661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 255562450661 - 2⁶ = 255562450597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255562453661) 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 15 ways as a sum of consecutive naturals, for example, 2738591 + ... + 2830371.

It is an arithmetic number, because the mean of its divisors is an integer number (19329289200).

Almost surely, 2^255562450661 is an apocalyptic number.

It is an amenable number.

255562450661 is a deficient number, since it is larger than the sum of its proper divisors (53706176539).

255562450661 is a wasteful number, since it uses less digits than its factorization.

255562450661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115204.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 255562450661 in words is "two hundred fifty-five billion, five hundred sixty-two million, four hundred fifty thousand, six hundred sixty-one".