65175223040 has 72 divisors (see below), whose sum is σ = 156803456880. Its totient is φ = 25955127296.

The previous prime is 65175223039. The next prime is 65175223051. The reversal of 65175223040 is 4032257156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178406 + ... + 402714.

It is an arithmetic number, because the mean of its divisors is an integer number (2177825790).

Almost surely, 2^65175223040 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 65175223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78401728440).

65175223040 is an abundant number, since it is smaller than the sum of its proper divisors (91628233840).

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

65175223040 is a wasteful number, since it uses less digits than its factorization.

65175223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224557 (or 224543 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 65175223040 in words is "sixty-five billion, one hundred seventy-five million, two hundred twenty-three thousand, forty".