65833878000 has 320 divisors, whose sum is σ = 237810493440. Its totient is φ = 15527808000.

The previous prime is 65833877971. The next prime is 65833878001. The reversal of 65833878000 is 87833856.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65833878001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2428521 + ... + 2455479.

It is an arithmetic number, because the mean of its divisors is an integer number (743157792).

Almost surely, 2^65833878000 is an apocalyptic number.

65833878000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65833878000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118905246720).

65833878000 is an abundant number, since it is smaller than the sum of its proper divisors (171976615440).

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

65833878000 is a wasteful number, since it uses less digits than its factorization.

65833878000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27033 (or 27017 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 65833878000 in words is "sixty-five billion, eight hundred thirty-three million, eight hundred seventy-eight thousand".