21116033255115 has 64 divisors (see below), whose sum is σ = 37911643228800. Its totient is φ = 11150426552832.

The previous prime is 21116033255113. The next prime is 21116033255143. The reversal of 21116033255115 is 51155233061112.

21116033255115 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 60 + 3 + 32 + 551 + 15 = 666.

It is not a de Polignac number, because 21116033255115 - 2¹ = 21116033255113 is a prime.

It is a super-2 number, since 2×21116033255115² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21116033255115.

It is not an unprimeable number, because it can be changed into a prime (21116033255113) 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 63 ways as a sum of consecutive naturals, for example, 19681117 + ... + 20726273.

It is an arithmetic number, because the mean of its divisors is an integer number (592369425450).

Almost surely, 2^{21116033255115} is an apocalyptic number.

21116033255115 is a deficient number, since it is larger than the sum of its proper divisors (16795609973685).

21116033255115 is a wasteful number, since it uses less digits than its factorization.

21116033255115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046653 (or 1046647 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 21116033255115 in words is "twenty-one trillion, one hundred sixteen billion, thirty-three million, two hundred fifty-five thousand, one hundred fifteen".