65347760044 has 144 divisors (see below), whose sum is σ = 140135184000. Its totient is φ = 26549752320.

The previous prime is 65347760021. The next prime is 65347760059. The reversal of 65347760044 is 44006774356.

It is a junction number, because it is equal to n+sod(n) for n = 65347759976 and 65347760003.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120790414 + ... + 120790954.

It is an arithmetic number, because the mean of its divisors is an integer number (973161000).

Almost surely, 2^65347760044 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 65347760044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70067592000).

65347760044 is an abundant number, since it is smaller than the sum of its proper divisors (74787423956).

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

65347760044 is a wasteful number, since it uses less digits than its factorization.

65347760044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 65347760044 in words is "sixty-five billion, three hundred forty-seven million, seven hundred sixty thousand, forty-four".