21410607516004 has 18 divisors (see below), whose sum is σ = 43585879586550. Its totient is φ = 9175974649632.

The previous prime is 21410607515993. The next prime is 21410607516019. The reversal of 21410607516004 is 40061570601412.

It can be written as a sum of positive squares in only one way, i.e., 21261302556004 + 149304960000 = 4610998^2 + 386400^2 .

It is a super-2 number, since 2×21410607516004² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 54618896529 + ... + 54618896920.

Almost surely, 2^{21410607516004} is an apocalyptic number.

It is an amenable number.

21410607516004 is an abundant number, since it is smaller than the sum of its proper divisors (22175272070546).

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

21410607516004 is a wasteful number, since it uses less digits than its factorization.

21410607516004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109237793467 (or 109237793458 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 21410607516004 in words is "twenty-one trillion, four hundred ten billion, six hundred seven million, five hundred sixteen thousand, four".