81016322 has 16 divisors (see below), whose sum is σ = 130857120. Its totient is φ = 37478208.

The previous prime is 81016319. The next prime is 81016337. The reversal of 81016322 is 22361018.

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, 18188 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (8178570).

Almost surely, 2^81016322 is an apocalyptic number.

81016322 is a deficient number, since it is larger than the sum of its proper divisors (49840798).

81016322 is a wasteful number, since it uses less digits than its factorization.

81016322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40465.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 81016322 is about 9000.9067321020. The cubic root of 81016322 is about 432.7039313595.

The spelling of 81016322 in words is "eighty-one million, sixteen thousand, three hundred twenty-two".