81441434081102 has 16 divisors (see below), whose sum is σ = 129408015824352. Its totient is φ = 38307645688320.

The previous prime is 81441434081101. The next prime is 81441434081143. The reversal of 81441434081102 is 20118043414418.

It is a super-2 number, since 2×81441434081102² (a number of 29 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 81441434081102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81441434081101) 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, 554145938 + ... + 554292885.

It is an arithmetic number, because the mean of its divisors is an integer number (8088000989022).

Almost surely, 2^{81441434081102} is an apocalyptic number.

81441434081102 is a deficient number, since it is larger than the sum of its proper divisors (47966581743250).

81441434081102 is a wasteful number, since it uses less digits than its factorization.

81441434081102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108441003.

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 81441434081102 in words is "eighty-one trillion, four hundred forty-one billion, four hundred thirty-four million, eighty-one thousand, one hundred two".