33161340331 has 8 divisors (see below), whose sum is σ = 37913994720. Its totient is φ = 28412515968.

The previous prime is 33161340313. The next prime is 33161340337. The reversal of 33161340331 is 13304316133.

It is a happy number.

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 33161340331 - 2⁷ = 33161340203 is a prime.

It is a super-2 number, since 2×33161340331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33161340331.

It is not an unprimeable number, because it can be changed into a prime (33161340337) 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, 938926 + ... + 973603.

It is an arithmetic number, because the mean of its divisors is an integer number (4739249340).

Almost surely, 2^33161340331 is an apocalyptic number.

33161340331 is a deficient number, since it is larger than the sum of its proper divisors (4752654389).

33161340331 is a wasteful number, since it uses less digits than its factorization.

33161340331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915013.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 33161340331 its reverse (13304316133), we get a palindrome (46465656464).

The spelling of 33161340331 in words is "thirty-three billion, one hundred sixty-one million, three hundred forty thousand, three hundred thirty-one".