53188336660 has 48 divisors (see below), whose sum is σ = 117808387200. Its totient is φ = 20115437184.

The previous prime is 53188336651. The next prime is 53188336661. The reversal of 53188336660 is 6663388135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53188336661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52006 + ... + 330274.

It is an arithmetic number, because the mean of its divisors is an integer number (2454341400).

Almost surely, 2^53188336660 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 53188336660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58904193600).

53188336660 is an abundant number, since it is smaller than the sum of its proper divisors (64620050540).

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

53188336660 is a wasteful number, since it uses less digits than its factorization.

53188336660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278800 (or 278798 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 53188336660 in words is "fifty-three billion, one hundred eighty-eight million, three hundred thirty-six thousand, six hundred sixty".