33505043064 has 64 divisors (see below), whose sum is σ = 85816156800. Its totient is φ = 10895181696.

The previous prime is 33505043059. The next prime is 33505043081. The reversal of 33505043064 is 46034050533.

It is a super-2 number, since 2×33505043064² (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 15 ways as a sum of consecutive naturals, for example, 835947 + ... + 875109.

It is an arithmetic number, because the mean of its divisors is an integer number (1340877450).

Almost surely, 2^33505043064 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 33505043064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42908078400).

33505043064 is an abundant number, since it is smaller than the sum of its proper divisors (52311113736).

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

33505043064 is a wasteful number, since it uses less digits than its factorization.

33505043064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40044 (or 40040 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 33505043064 its reverse (46034050533), we get a palindrome (79539093597).

The spelling of 33505043064 in words is "thirty-three billion, five hundred five million, forty-three thousand, sixty-four".