65650452504 has 192 divisors, whose sum is σ = 204041779200. Its totient is φ = 17235099648.

The previous prime is 65650452473. The next prime is 65650452521. The reversal of 65650452504 is 40525405656.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6326232 + ... + 6336600.

It is an arithmetic number, because the mean of its divisors is an integer number (1062717600).

Almost surely, 2^65650452504 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 65650452504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102020889600).

65650452504 is an abundant number, since it is smaller than the sum of its proper divisors (138391326696).

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

65650452504 is a wasteful number, since it uses less digits than its factorization.

65650452504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634 (or 10617 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 65650452504 in words is "sixty-five billion, six hundred fifty million, four hundred fifty-two thousand, five hundred four".