21580112663363 has 8 divisors (see below), whose sum is σ = 22177667182800. Its totient is φ = 20983311208800.

The previous prime is 21580112663357. The next prime is 21580112663381. The reversal of 21580112663363 is 36336621108512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21580112663363 - 2³² = 21575817696067 is a prime.

It is a super-2 number, since 2×21580112663363² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21580112663393) 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 7 ways as a sum of consecutive naturals, for example, 188208113 + ... + 188322738.

It is an arithmetic number, because the mean of its divisors is an integer number (2772208397850).

Almost surely, 2^{21580112663363} is an apocalyptic number.

21580112663363 is a deficient number, since it is larger than the sum of its proper divisors (597554519437).

21580112663363 is a wasteful number, since it uses less digits than its factorization.

21580112663363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376532437.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 21580112663363 in words is "twenty-one trillion, five hundred eighty billion, one hundred twelve million, six hundred sixty-three thousand, three hundred sixty-three".