11172165065729 has 8 divisors (see below), whose sum is σ = 11829385156608. Its totient is φ = 10514948742720.

The previous prime is 11172165065717. The next prime is 11172165065741. The reversal of 11172165065729 is 92756056127111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11172165065717) and next prime (11172165065741).

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 11172165065729 - 2²⁴ = 11172148288513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11172165065779) 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, 7147784 + ... + 8569430.

It is an arithmetic number, because the mean of its divisors is an integer number (1478673144576).

Almost surely, 2^{11172165065729} is an apocalyptic number.

It is an amenable number.

11172165065729 is a deficient number, since it is larger than the sum of its proper divisors (657220090879).

11172165065729 is a wasteful number, since it uses less digits than its factorization.

11172165065729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883935.

The product of its (nonzero) digits is 1587600, while the sum is 53.

The spelling of 11172165065729 in words is "eleven trillion, one hundred seventy-two billion, one hundred sixty-five million, sixty-five thousand, seven hundred twenty-nine".