255541366215 has 64 divisors (see below), whose sum is σ = 464544460800. Its totient is φ = 133221411072.

The previous prime is 255541366189. The next prime is 255541366231. The reversal of 255541366215 is 512663145552.

255541366215 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 4 + 13 + 6 + 621 + 5 = 666.

It is not a de Polignac number, because 255541366215 - 2¹² = 255541362119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5108214 + ... + 5157996.

It is an arithmetic number, because the mean of its divisors is an integer number (7258507200).

Almost surely, 2^255541366215 is an apocalyptic number.

255541366215 is a deficient number, since it is larger than the sum of its proper divisors (209003094585).

255541366215 is a wasteful number, since it uses less digits than its factorization.

255541366215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50653 (or 50647 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 255541366215 in words is "two hundred fifty-five billion, five hundred forty-one million, three hundred sixty-six thousand, two hundred fifteen".