65506031360 has 864 divisors, whose sum is σ = 214210676736. Its totient is φ = 18734284800.

The previous prime is 65506031347. The next prime is 65506031369. The reversal of 65506031360 is 6313060556.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 65506031360.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65506031369) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 922620125 + ... + 922620195.

It is an arithmetic number, because the mean of its divisors is an integer number (247929024).

Almost surely, 2^65506031360 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 65506031360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107105338368).

65506031360 is an abundant number, since it is smaller than the sum of its proper divisors (148704645376).

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

65506031360 is a wasteful number, since it uses less digits than its factorization.

65506031360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The spelling of 65506031360 in words is "sixty-five billion, five hundred six million, thirty-one thousand, three hundred sixty".