21362616213363 has 24 divisors (see below), whose sum is σ = 34092768591648. Its totient is φ = 12821212115712.

The previous prime is 21362616213313. The next prime is 21362616213371. The reversal of 21362616213363 is 36331261626312.

21362616213363 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 2 + 616 + 21 + 3 + 3 + 6 + 3 = 666.

It is not a de Polignac number, because 21362616213363 - 2¹⁸ = 21362615951219 is a prime.

It is a super-2 number, since 2×21362616213363² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21362616213313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3035321320 + ... + 3035328357.

It is an arithmetic number, because the mean of its divisors is an integer number (1420532024652).

Almost surely, 2^{21362616213363} is an apocalyptic number.

21362616213363 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21362616213363 is a deficient number, since it is larger than the sum of its proper divisors (12730152378285).

21362616213363 is a wasteful number, since it uses less digits than its factorization.

21362616213363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070649723 (or 6070649720 counting only the distinct ones).

The product of its digits is 839808, while the sum is 45.

Adding to 21362616213363 its reverse (36331261626312), we get a palindrome (57693877839675).

The spelling of 21362616213363 in words is "twenty-one trillion, three hundred sixty-two billion, six hundred sixteen million, two hundred thirteen thousand, three hundred sixty-three".