33366866850 has 72 divisors (see below), whose sum is σ = 89739524160. Its totient is φ = 8888513760.

The previous prime is 33366866737. The next prime is 33366866851. The reversal of 33366866850 is 5866866333.

It is a super-2 number, since 2×33366866850² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33366866851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 396811 + ... + 473489.

It is an arithmetic number, because the mean of its divisors is an integer number (1246382280).

Almost surely, 2^33366866850 is an apocalyptic number.

33366866850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33366866850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44869762080).

33366866850 is an abundant number, since it is smaller than the sum of its proper divisors (56372657310).

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

33366866850 is a wasteful number, since it uses less digits than its factorization.

33366866850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77664 (or 77656 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 33366866850 in words is "thirty-three billion, three hundred sixty-six million, eight hundred sixty-six thousand, eight hundred fifty".