33166531021013 has 16 divisors (see below), whose sum is σ = 35728898975616. Its totient is φ = 30605749715520.

The previous prime is 33166531020971. The next prime is 33166531021027. The reversal of 33166531021013 is 31012013566133.

It is a cyclic number.

It is not a de Polignac number, because 33166531021013 - 2¹⁸ = 33166530758869 is a prime.

It is a super-2 number, since 2×33166531021013² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33166531021073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752275256 + ... + 752319342.

It is an arithmetic number, because the mean of its divisors is an integer number (2233056185976).

Almost surely, 2^{33166531021013} is an apocalyptic number.

It is an amenable number.

33166531021013 is a deficient number, since it is larger than the sum of its proper divisors (2562367954603).

33166531021013 is a wasteful number, since it uses less digits than its factorization.

33166531021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60764.

The product of its (nonzero) digits is 29160, while the sum is 35.

Adding to 33166531021013 its reverse (31012013566133), we get a palindrome (64178544587146).

The spelling of 33166531021013 in words is "thirty-three trillion, one hundred sixty-six billion, five hundred thirty-one million, twenty-one thousand, thirteen".