21373660660062 has 16 divisors (see below), whose sum is σ = 43902654329232. Its totient is φ = 6931998051840.

The previous prime is 21373660660039. The next prime is 21373660660063. The reversal of 21373660660062 is 26006606637312.

It is a super-2 number, since 2×21373660660062² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21373660659993 and 21373660660020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21373660660063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48138875139 + ... + 48138875582.

It is an arithmetic number, because the mean of its divisors is an integer number (2743915895577).

Almost surely, 2^{21373660660062} is an apocalyptic number.

21373660660062 is an abundant number, since it is smaller than the sum of its proper divisors (22528993669170).

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

21373660660062 is a wasteful number, since it uses less digits than its factorization.

21373660660062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96277750763.

The product of its (nonzero) digits is 1959552, while the sum is 48.

The spelling of 21373660660062 in words is "twenty-one trillion, three hundred seventy-three billion, six hundred sixty million, six hundred sixty thousand, sixty-two".