53321015016 has 160 divisors (see below), whose sum is σ = 151270812000. Its totient is φ = 17546108544.

The previous prime is 53321014997. The next prime is 53321015063. The reversal of 53321015016 is 61051012335.

53321015016 is a `hidden beast` number, since 53 + 3 + 2 + 101 + 501 + 6 = 666.

53321015016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21682795 + ... + 21685253.

It is an arithmetic number, because the mean of its divisors is an integer number (945442575).

Almost surely, 2^53321015016 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 53321015016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75635406000).

53321015016 is an abundant number, since it is smaller than the sum of its proper divisors (97949796984).

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

53321015016 is a wasteful number, since it uses less digits than its factorization.

53321015016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 53321015016 in words is "fifty-three billion, three hundred twenty-one million, fifteen thousand, sixteen".