65363887008 has 240 divisors, whose sum is σ = 219966848640. Its totient is φ = 18652322304.

The previous prime is 65363886989. The next prime is 65363887021. The reversal of 65363887008 is 80078836356.

It is a happy number.

65363887008 is a `hidden beast` number, since 6 + 536 + 38 + 8 + 70 + 0 + 8 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19285378 + ... + 19288766.

It is an arithmetic number, because the mean of its divisors is an integer number (916528536).

Almost surely, 2^65363887008 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 65363887008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109983424320).

65363887008 is an abundant number, since it is smaller than the sum of its proper divisors (154602961632).

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

65363887008 is a wasteful number, since it uses less digits than its factorization.

65363887008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481 (or 4464 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 65363887008 in words is "sixty-five billion, three hundred sixty-three million, eight hundred eighty-seven thousand, eight".