109664071 has 8 divisors (see below), whose sum is σ = 119916288. Its totient is φ = 99459000.

The previous prime is 109664033. The next prime is 109664101. The reversal of 109664071 is 170466901.

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 109664071 - 2⁹ = 109663559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109664021) 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, 6825 + ... + 16306.

It is an arithmetic number, because the mean of its divisors is an integer number (14989536).

Almost surely, 2^109664071 is an apocalyptic number.

109664071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109664071 is a deficient number, since it is larger than the sum of its proper divisors (10252217).

109664071 is a wasteful number, since it uses less digits than its factorization.

109664071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23573.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 109664071 is about 10472.0614493995. The cubic root of 109664071 is about 478.6537377783.

The spelling of 109664071 in words is "one hundred nine million, six hundred sixty-four thousand, seventy-one".