53650368816 has 160 divisors (see below), whose sum is σ = 164418190848. Its totient is φ = 14887710720.

The previous prime is 53650368809. The next prime is 53650368817. The reversal of 53650368816 is 61886305635.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (53650368817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251341 + ... + 412883.

Almost surely, 2^53650368816 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 53650368816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82209095424).

53650368816 is an abundant number, since it is smaller than the sum of its proper divisors (110767822032).

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

53650368816 is a wasteful number, since it uses less digits than its factorization.

53650368816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161619 (or 161613 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 53650368816 in words is "fifty-three billion, six hundred fifty million, three hundred sixty-eight thousand, eight hundred sixteen".