21613024162055 has 16 divisors (see below), whose sum is σ = 26539413626880. Its totient is φ = 16887915346848.

The previous prime is 21613024162043. The next prime is 21613024162183. The reversal of 21613024162055 is 55026142031612.

It is a cyclic number.

It is not a de Polignac number, because 21613024162055 - 2¹⁶ = 21613024096519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8042906 + ... + 10388184.

It is an arithmetic number, because the mean of its divisors is an integer number (1658713351680).

Almost surely, 2^{21613024162055} is an apocalyptic number.

21613024162055 is a deficient number, since it is larger than the sum of its proper divisors (4926389464825).

21613024162055 is a wasteful number, since it uses less digits than its factorization.

21613024162055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388190.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 21613024162055 its reverse (55026142031612), we get a palindrome (76639166193667).

The spelling of 21613024162055 in words is "twenty-one trillion, six hundred thirteen billion, twenty-four million, one hundred sixty-two thousand, fifty-five".