21333193164027 has 36 divisors (see below), whose sum is σ = 33189614391960. Its totient is φ = 13158659197056.

The previous prime is 21333193163987. The next prime is 21333193164037. The reversal of 21333193164027 is 72046139133312.

21333193164027 is a `hidden beast` number, since 2 + 13 + 3 + 319 + 316 + 4 + 0 + 2 + 7 = 666.

It is not a de Polignac number, because 21333193164027 - 2⁷ = 21333193163899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21333193164037) 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 35 ways as a sum of consecutive naturals, for example, 19495077 + ... + 20560262.

It is an arithmetic number, because the mean of its divisors is an integer number (921933733110).

Almost surely, 2^{21333193164027} is an apocalyptic number.

21333193164027 is a deficient number, since it is larger than the sum of its proper divisors (11856421227933).

21333193164027 is a wasteful number, since it uses less digits than its factorization.

21333193164027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40055480 (or 40055418 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 21333193164027 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred ninety-three million, one hundred sixty-four thousand, twenty-seven".