16115617009 has 8 divisors (see below), whose sum is σ = 16406125920. Its totient is φ = 15825686976.

The previous prime is 16115616961. The next prime is 16115617027. The reversal of 16115617009 is 90071651161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16115617009 is a prime.

It is a super-2 number, since 2×16115617009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16115627009) 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, 88344 + ... + 200089.

It is an arithmetic number, because the mean of its divisors is an integer number (2050765740).

Almost surely, 2^16115617009 is an apocalyptic number.

It is an amenable number.

16115617009 is a deficient number, since it is larger than the sum of its proper divisors (290508911).

16115617009 is an equidigital number, since it uses as much as digits as its factorization.

16115617009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289439.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 16115617009 in words is "sixteen billion, one hundred fifteen million, six hundred seventeen thousand, nine".