33213321066 has 16 divisors (see below), whose sum is σ = 66445286688. Its totient is φ = 11067999600.

The previous prime is 33213321049. The next prime is 33213321077. The reversal of 33213321066 is 66012331233.

It is a super-2 number, since 2×33213321066² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753645 + ... + 796496.

It is an arithmetic number, because the mean of its divisors is an integer number (4152830418).

Almost surely, 2^33213321066 is an apocalyptic number.

33213321066 is an abundant number, since it is smaller than the sum of its proper divisors (33231965622).

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

33213321066 is a wasteful number, since it uses less digits than its factorization.

33213321066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553717.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 33213321066 its reverse (66012331233), we get a palindrome (99225652299).

The spelling of 33213321066 in words is "thirty-three billion, two hundred thirteen million, three hundred twenty-one thousand, sixty-six".