81133300333118 has 16 divisors (see below), whose sum is σ = 133654613122800. Its totient is φ = 36631264334400.

The previous prime is 81133300333103. The next prime is 81133300333147.

81133300333118 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×81133300333118² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12375423863 + ... + 12375430418.

It is an arithmetic number, because the mean of its divisors is an integer number (8353413320175).

Almost surely, 2^{81133300333118} is an apocalyptic number.

81133300333118 is a deficient number, since it is larger than the sum of its proper divisors (52521312789682).

81133300333118 is a wasteful number, since it uses less digits than its factorization.

81133300333118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24750854443.

The product of its (nonzero) digits is 46656, while the sum is 38.

It can be divided in two parts, 81133300 and 333118, that added together give a palindrome (81466418).

The spelling of 81133300333118 in words is "eighty-one trillion, one hundred thirty-three billion, three hundred million, three hundred thirty-three thousand, one hundred eighteen".