81111960402110 has 32 divisors (see below), whose sum is σ = 160251538534272. Its totient is φ = 29314305816480.

The previous prime is 81111960402097. The next prime is 81111960402127. The reversal of 81111960402110 is 1120406911118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2261888384 + ... + 2261924243.

It is an arithmetic number, because the mean of its divisors is an integer number (5007860579196).

Almost surely, 2^{81111960402110} is an apocalyptic number.

81111960402110 is a deficient number, since it is larger than the sum of its proper divisors (79139578132162).

81111960402110 is a wasteful number, since it uses less digits than its factorization.

81111960402110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523812808.

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 81111960402110 in words is "eighty-one trillion, one hundred eleven billion, nine hundred sixty million, four hundred two thousand, one hundred ten".