109659633409 has 16 divisors (see below), whose sum is σ = 112386216960. Its totient is φ = 106968471120.

The previous prime is 109659633379. The next prime is 109659633439. The reversal of 109659633409 is 904336956901.

It is an interprime number because it is at equal distance from previous prime (109659633379) and next prime (109659633439).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109659633409 is a prime.

It is a super-2 number, since 2×109659633409² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109659633409.

It is not an unprimeable number, because it can be changed into a prime (109659633439) 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, 6243562 + ... + 6261100.

It is an arithmetic number, because the mean of its divisors is an integer number (7024138560).

Almost surely, 2^109659633409 is an apocalyptic number.

It is an amenable number.

109659633409 is a deficient number, since it is larger than the sum of its proper divisors (2726583551).

109659633409 is a wasteful number, since it uses less digits than its factorization.

109659633409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540.

The product of its (nonzero) digits is 4723920, while the sum is 55.

The spelling of 109659633409 in words is "one hundred nine billion, six hundred fifty-nine million, six hundred thirty-three thousand, four hundred nine".