109219876065 has 16 divisors (see below), whose sum is σ = 194168668800. Its totient is φ = 58250600496.

The previous prime is 109219876063. The next prime is 109219876069. The reversal of 109219876065 is 560678912901.

109219876065 is a `hidden beast` number, since 1 + 0 + 9 + 21 + 9 + 8 + 7 + 606 + 5 = 666.

It is not a de Polignac number, because 109219876065 - 2¹ = 109219876063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109219876061) 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, 404517925 + ... + 404518194.

It is an arithmetic number, because the mean of its divisors is an integer number (12135541800).

Almost surely, 2^109219876065 is an apocalyptic number.

109219876065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109219876065 is a deficient number, since it is larger than the sum of its proper divisors (84948792735).

109219876065 is an equidigital number, since it uses as much as digits as its factorization.

109219876065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809036133 (or 809036127 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 109219876065 in words is "one hundred nine billion, two hundred nineteen million, eight hundred seventy-six thousand, sixty-five".