33555412000 has 192 divisors, whose sum is σ = 90150278400. Its totient is φ = 12173568000.

The previous prime is 33555411991. The next prime is 33555412013. The reversal of 33555412000 is 21455533.

It is a super-2 number, since 2×33555412000² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33555412000.

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, 31987476 + ... + 31988524.

It is an arithmetic number, because the mean of its divisors is an integer number (469532700).

Almost surely, 2^33555412000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33555412000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45075139200).

33555412000 is an abundant number, since it is smaller than the sum of its proper divisors (56594866400).

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

33555412000 is a wasteful number, since it uses less digits than its factorization.

33555412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 33555412000 its reverse (21455533), we get a palindrome (33576867533).

The spelling of 33555412000 in words is "thirty-three billion, five hundred fifty-five million, four hundred twelve thousand".