21060316079104 has 99 divisors (see below), whose sum is σ = 42819758050953. Its totient is φ = 10353126912000.

The previous prime is 21060316079093. The next prime is 21060316079129. The reversal of 21060316079104 is 40197061306012.

The square root of 21060316079104 is 4589152.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 684842312704 + 20375473766400 = 827552^2 + 4513920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8958023529 + ... + 8958025879.

Almost surely, 2^{21060316079104} is an apocalyptic number.

21060316079104 is the 4589152-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21060316079104

21060316079104 is an abundant number, since it is smaller than the sum of its proper divisors (21759441971849).

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

21060316079104 is an frugal number, since it uses more digits than its factorization.

21060316079104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 21060316079104 in words is "twenty-one trillion, sixty billion, three hundred sixteen million, seventy-nine thousand, one hundred four".