33285162661 has 4 divisors (see below), whose sum is σ = 33913184652. Its totient is φ = 32657140672.

The previous prime is 33285162649. The next prime is 33285162683. The reversal of 33285162661 is 16626158233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16626158233 = 8329 ⋅1996177.

It can be written as a sum of positive squares in 2 ways, for example, as 13356193761 + 19928968900 = 115569^2 + 141170^2 .

It is a cyclic number.

It is not a de Polignac number, because 33285162661 - 2³³ = 24695228069 is a prime.

It is a super-2 number, since 2×33285162661² (a number of 22 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 (33285162611) 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 3 ways as a sum of consecutive naturals, for example, 314010916 + ... + 314011021.

It is an arithmetic number, because the mean of its divisors is an integer number (8478296163).

Almost surely, 2^33285162661 is an apocalyptic number.

It is an amenable number.

33285162661 is a deficient number, since it is larger than the sum of its proper divisors (628021991).

33285162661 is an equidigital number, since it uses as much as digits as its factorization.

33285162661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628021990.

The product of its digits is 311040, while the sum is 43.

The spelling of 33285162661 in words is "thirty-three billion, two hundred eighty-five million, one hundred sixty-two thousand, six hundred sixty-one".