109329455561 has 16 divisors (see below), whose sum is σ = 115569100800. Its totient is φ = 103289472000.

The previous prime is 109329455539. The next prime is 109329455569. The reversal of 109329455561 is 165554923901.

It is a cyclic number.

It is not a de Polignac number, because 109329455561 - 2¹⁰ = 109329454537 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109329455569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32840 + ... + 468761.

It is an arithmetic number, because the mean of its divisors is an integer number (7223068800).

Almost surely, 2^109329455561 is an apocalyptic number.

It is an amenable number.

109329455561 is a deficient number, since it is larger than the sum of its proper divisors (6239645239).

109329455561 is an equidigital number, since it uses as much as digits as its factorization.

109329455561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501800.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 109329455561 in words is "one hundred nine billion, three hundred twenty-nine million, four hundred fifty-five thousand, five hundred sixty-one".