109664881 has 8 divisors (see below), whose sum is σ = 111017984. Its totient is φ = 108319680.

The previous prime is 109664879. The next prime is 109664953. The reversal of 109664881 is 188466901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109664881 - 2¹ = 109664879 is a prime.

It is a super-2 number, since 2×109664881² = 24052772249488322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109664861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28816 + ... + 32398.

It is an arithmetic number, because the mean of its divisors is an integer number (13877248).

Almost surely, 2^109664881 is an apocalyptic number.

It is an amenable number.

109664881 is a deficient number, since it is larger than the sum of its proper divisors (1353103).

109664881 is a wasteful number, since it uses less digits than its factorization.

109664881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 109664881 is about 10472.1001236619. The cubic root of 109664881 is about 478.6549162517.

The spelling of 109664881 in words is "one hundred nine million, six hundred sixty-four thousand, eight hundred eighty-one".