33338730816 has 224 divisors, whose sum is σ = 100845884160. Its totient is φ = 10793779200.

The previous prime is 33338730797. The next prime is 33338730827. The reversal of 33338730816 is 61803783333.

33338730816 is a `hidden beast` number, since 3 + 3 + 338 + 7 + 308 + 1 + 6 = 666.

It is a super-2 number, since 2×33338730816² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18207021 + ... + 18208851.

It is an arithmetic number, because the mean of its divisors is an integer number (450204840).

Almost surely, 2^33338730816 is an apocalyptic number.

33338730816 is a gapful number since it is divisible by the number (36) 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 33338730816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50422942080).

33338730816 is an abundant number, since it is smaller than the sum of its proper divisors (67507153344).

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

33338730816 is a wasteful number, since it uses less digits than its factorization.

33338730816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 33338730816 in words is "thirty-three billion, three hundred thirty-eight million, seven hundred thirty thousand, eight hundred sixteen".