33381540181 has 8 divisors (see below), whose sum is σ = 36959752224. Its totient is φ = 29893915920.

The previous prime is 33381540121. The next prime is 33381540209. The reversal of 33381540181 is 18104518333.

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

It is not a de Polignac number, because 33381540181 - 2⁷ = 33381540053 is a prime.

It is a super-2 number, since 2×33381540181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33381540181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33381540121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22646170 + ... + 22647643.

It is an arithmetic number, because the mean of its divisors is an integer number (4619969028).

Almost surely, 2^33381540181 is an apocalyptic number.

It is an amenable number.

33381540181 is a deficient number, since it is larger than the sum of its proper divisors (3578212043).

33381540181 is a wasteful number, since it uses less digits than its factorization.

33381540181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45293891.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 33381540181 in words is "thirty-three billion, three hundred eighty-one million, five hundred forty thousand, one hundred eighty-one".