65612282688 has 168 divisors, whose sum is σ = 199315913280. Its totient is φ = 21164716800.

The previous prime is 65612282653. The next prime is 65612282693. The reversal of 65612282688 is 88628221656.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1640853 + ... + 1680363.

Almost surely, 2^65612282688 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 65612282688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99657956640).

65612282688 is an abundant number, since it is smaller than the sum of its proper divisors (133703630592).

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

65612282688 is a wasteful number, since it uses less digits than its factorization.

65612282688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39594 (or 39547 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 65612282688 in words is "sixty-five billion, six hundred twelve million, two hundred eighty-two thousand, six hundred eighty-eight".