33003621040 has 80 divisors (see below), whose sum is σ = 82720205568. Its totient is φ = 12173534208.

The previous prime is 33003621031. The next prime is 33003621107. The reversal of 33003621040 is 4012630033.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037857 + ... + 1069183.

Almost surely, 2^33003621040 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 33003621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41360102784).

33003621040 is an abundant number, since it is smaller than the sum of its proper divisors (49716584528).

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

33003621040 is a wasteful number, since it uses less digits than its factorization.

33003621040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32366 (or 32360 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The spelling of 33003621040 in words is "thirty-three billion, three million, six hundred twenty-one thousand, forty".