11669172109 has 8 divisors (see below), whose sum is σ = 13421141888. Its totient is φ = 9938438640.

The previous prime is 11669172023. The next prime is 11669172131. The reversal of 11669172109 is 90127196611.

It is a happy number.

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 11669172109 - 2⁷ = 11669171981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11669172149) 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, 5307897 + ... + 5310094.

It is an arithmetic number, because the mean of its divisors is an integer number (1677642736).

Almost surely, 2^11669172109 is an apocalyptic number.

It is an amenable number.

11669172109 is a deficient number, since it is larger than the sum of its proper divisors (1751969779).

11669172109 is a wasteful number, since it uses less digits than its factorization.

11669172109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618155.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 11669172109 in words is "eleven billion, six hundred sixty-nine million, one hundred seventy-two thousand, one hundred nine".