81055176234 has 16 divisors (see below), whose sum is σ = 162421511040. Its totient is φ = 26966532320.

The previous prime is 81055176229. The next prime is 81055176259. The reversal of 81055176234 is 43267155018.

It is a happy 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, 12961554 + ... + 12967805.

It is an arithmetic number, because the mean of its divisors is an integer number (10151344440).

Almost surely, 2^81055176234 is an apocalyptic number.

81055176234 is an abundant number, since it is smaller than the sum of its proper divisors (81366334806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81055176234 is a wasteful number, since it uses less digits than its factorization.

81055176234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25929885.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 81055176234 in words is "eighty-one billion, fifty-five million, one hundred seventy-six thousand, two hundred thirty-four".