65073857472 has 336 divisors, whose sum is σ = 204616222720. Its totient is φ = 19653249024.

The previous prime is 65073857467. The next prime is 65073857581. The reversal of 65073857472 is 27475837056.

It is a happy number.

65073857472 is a `hidden beast` number, since 6 + 50 + 73 + 8 + 57 + 472 = 666.

It is a congruent number.

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, 107205393 + ... + 107205999.

Almost surely, 2^65073857472 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 65073857472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102308111360).

65073857472 is an abundant number, since it is smaller than the sum of its proper divisors (139542365248).

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

65073857472 is a wasteful number, since it uses less digits than its factorization.

65073857472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 65073857472 in words is "sixty-five billion, seventy-three million, eight hundred fifty-seven thousand, four hundred seventy-two".