5081021816655 has 16 divisors (see below), whose sum is σ = 8165135501280. Its totient is φ = 2698044770688.

The previous prime is 5081021816627. The next prime is 5081021816669. The reversal of 5081021816655 is 5566181201805.

It is not a de Polignac number, because 5081021816655 - 2⁷ = 5081021816527 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 739592172 + ... + 739599041.

It is an arithmetic number, because the mean of its divisors is an integer number (510320968830).

Almost surely, 2^{5081021816655} is an apocalyptic number.

5081021816655 is a deficient number, since it is larger than the sum of its proper divisors (3084113684625).

5081021816655 is a wasteful number, since it uses less digits than its factorization.

5081021816655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479191450.

The product of its (nonzero) digits is 576000, while the sum is 48.

The spelling of 5081021816655 in words is "five trillion, eighty-one billion, twenty-one million, eight hundred sixteen thousand, six hundred fifty-five".