33066513121 has 8 divisors (see below), whose sum is σ = 33128505000. Its totient is φ = 33004581120.

The previous prime is 33066513113. The next prime is 33066513133. The reversal of 33066513121 is 12131566033.

It can be written as a sum of positive squares in 4 ways, for example, as 5456038225 + 27610474896 = 73865^2 + 166164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33066513121 - 2³ = 33066513113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33066513101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177755 + ... + 1205503.

It is an arithmetic number, because the mean of its divisors is an integer number (4141063125).

Almost surely, 2^33066513121 is an apocalyptic number.

It is an amenable number.

33066513121 is a deficient number, since it is larger than the sum of its proper divisors (61991879).

33066513121 is a wasteful number, since it uses less digits than its factorization.

33066513121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29939.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 33066513121 in words is "thirty-three billion, sixty-six million, five hundred thirteen thousand, one hundred twenty-one".