33280065000 has 1440 divisors, whose sum is σ = 149726697120. Its totient is φ = 6858432000.

The previous prime is 33280064947. The next prime is 33280065017. The reversal of 33280065000 is 56008233.

33280065000 is a `hidden beast` number, since 3 + 3 + 2 + 8 + 0 + 0 + 650 + 0 + 0 = 666.

It is a super-2 number, since 2×33280065000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 773954979 + ... + 773955021.

It is an arithmetic number, because the mean of its divisors is an integer number (103976873).

Almost surely, 2^33280065000 is an apocalyptic number.

33280065000 is a gapful number since it is divisible by the number (30) 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 33280065000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74863348560).

33280065000 is an abundant number, since it is smaller than the sum of its proper divisors (116446632120).

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

33280065000 is a wasteful number, since it uses less digits than its factorization.

33280065000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 33280065000 in words is "thirty-three billion, two hundred eighty million, sixty-five thousand".