33366044820 has 144 divisors (see below), whose sum is σ = 95732038080. Its totient is φ = 8682060288.

The previous prime is 33366044791. The next prime is 33366044843. The reversal of 33366044820 is 2844066333.

It is a super-2 number, since 2×33366044820² (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 47 ways as a sum of consecutive naturals, for example, 36786807 + ... + 36787713.

It is an arithmetic number, because the mean of its divisors is an integer number (664805820).

Almost surely, 2^33366044820 is an apocalyptic number.

33366044820 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 33366044820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47866019040).

33366044820 is an abundant number, since it is smaller than the sum of its proper divisors (62365993260).

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

33366044820 is a wasteful number, since it uses less digits than its factorization.

33366044820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 33366044820 in words is "thirty-three billion, three hundred sixty-six million, forty-four thousand, eight hundred twenty".