53316446512 has 80 divisors (see below), whose sum is σ = 119696624640. Its totient is φ = 22533428736.

The previous prime is 53316446489. The next prime is 53316446551. The reversal of 53316446512 is 21564461335.

It is a super-2 number, since 2×53316446512² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8428983 + ... + 8435305.

It is an arithmetic number, because the mean of its divisors is an integer number (1496207808).

Almost surely, 2^53316446512 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 53316446512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59848312320).

53316446512 is an abundant number, since it is smaller than the sum of its proper divisors (66380178128).

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

53316446512 is a wasteful number, since it uses less digits than its factorization.

53316446512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370 (or 7364 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 53316446512 in words is "fifty-three billion, three hundred sixteen million, four hundred forty-six thousand, five hundred twelve".