53366400648 has 192 divisors, whose sum is σ = 167091724800. Its totient is φ = 15232896000.

The previous prime is 53366400641. The next prime is 53366400667. The reversal of 53366400648 is 84600466335.

It is not an unprimeable number, because it can be changed into a prime (53366400641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 913353 + ... + 970023.

It is an arithmetic number, because the mean of its divisors is an integer number (870269400).

Almost surely, 2^53366400648 is an apocalyptic number.

53366400648 is a gapful number since it is divisible by the number (58) 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 53366400648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83545862400).

53366400648 is an abundant number, since it is smaller than the sum of its proper divisors (113725324152).

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

53366400648 is a wasteful number, since it uses less digits than its factorization.

53366400648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56764 (or 56757 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 53366400648 in words is "fifty-three billion, three hundred sixty-six million, four hundred thousand, six hundred forty-eight".