52216851960 has 640 divisors, whose sum is σ = 218814120000. Its totient is φ = 11010069504.

The previous prime is 52216851901. The next prime is 52216851961. The reversal of 52216851960 is 6915861225.

52216851960 is a `hidden beast` number, since 52 + 21 + 6 + 8 + 519 + 60 = 666.

It is a super-2 number, since 2×52216851960² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52216851961) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 33709266 + ... + 33710814.

Almost surely, 2^52216851960 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 52216851960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109407060000).

52216851960 is an abundant number, since it is smaller than the sum of its proper divisors (166597268040).

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

52216851960 is a wasteful number, since it uses less digits than its factorization.

52216851960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 52216851960 in words is "fifty-two billion, two hundred sixteen million, eight hundred fifty-one thousand, nine hundred sixty".