21560736117132 has 84 divisors (see below), whose sum is σ = 56627802422016. Its totient is φ = 7179702533280.

The previous prime is 21560736117131. The next prime is 21560736117169. The reversal of 21560736117132 is 23171163706512.

21560736117132 is a `hidden beast` number, since 2 + 1 + 5 + 607 + 3 + 6 + 1 + 1 + 7 + 1 + 32 = 666.

It is a super-4 number, since 4×21560736117132⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (21560736117131) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 800844 + ... + 6615347.

It is an arithmetic number, because the mean of its divisors is an integer number (674140505024).

Almost surely, 2^{21560736117132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21560736117132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28313901211008).

21560736117132 is an abundant number, since it is smaller than the sum of its proper divisors (35067066304884).

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

21560736117132 is an equidigital number, since it uses as much as digits as its factorization.

21560736117132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7417210 (or 7417193 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 21560736117132 in words is "twenty-one trillion, five hundred sixty billion, seven hundred thirty-six million, one hundred seventeen thousand, one hundred thirty-two".