21612702766362 has 16 divisors (see below), whose sum is σ = 43334285652192. Its totient is φ = 7186087568880.

The previous prime is 21612702766349. The next prime is 21612702766387. The reversal of 21612702766362 is 26366720721612.

It is a super-2 number, since 2×21612702766362² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4536669064 + ... + 4536673827.

It is an arithmetic number, because the mean of its divisors is an integer number (2708392853262).

Almost surely, 2^{21612702766362} is an apocalyptic number.

21612702766362 is an abundant number, since it is smaller than the sum of its proper divisors (21721582885830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21612702766362 is a wasteful number, since it uses less digits than its factorization.

21612702766362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9073343293.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 21612702766362 in words is "twenty-one trillion, six hundred twelve billion, seven hundred two million, seven hundred sixty-six thousand, three hundred sixty-two".