21052174711296 has 160 divisors (see below), whose sum is σ = 56897920050048. Its totient is φ = 6915673210880.

The previous prime is 21052174711259. The next prime is 21052174711303. The reversal of 21052174711296 is 69211747125012.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270092746 + ... + 270170678.

Almost surely, 2^{21052174711296} 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 21052174711296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28448960025024).

21052174711296 is an abundant number, since it is smaller than the sum of its proper divisors (35845745338752).

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

21052174711296 is an equidigital number, since it uses as much as digits as its factorization.

21052174711296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80502 (or 80486 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 21052174711296 in words is "twenty-one trillion, fifty-two billion, one hundred seventy-four million, seven hundred eleven thousand, two hundred ninety-six".