53261760216 has 128 divisors (see below), whose sum is σ = 156792153600. Its totient is φ = 14762542080.

The previous prime is 53261760187. The next prime is 53261760283. The reversal of 53261760216 is 61206716235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758851 + ... + 826061.

It is an arithmetic number, because the mean of its divisors is an integer number (1224938700).

Almost surely, 2^53261760216 is an apocalyptic number.

53261760216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53261760216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78396076800).

53261760216 is an abundant number, since it is smaller than the sum of its proper divisors (103530393384).

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

53261760216 is a wasteful number, since it uses less digits than its factorization.

53261760216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67369 (or 67365 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 53261760216 in words is "fifty-three billion, two hundred sixty-one million, seven hundred sixty thousand, two hundred sixteen".