16115426209 has 8 divisors (see below), whose sum is σ = 16198455168. Its totient is φ = 16032503280.

The previous prime is 16115426207. The next prime is 16115426219. The reversal of 16115426209 is 90262451161.

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 16115426209 - 2¹ = 16115426207 is a prime.

It is a super-2 number, since 2×16115426209² (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 (16115426207) 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, 287784 + ... + 339190.

It is an arithmetic number, because the mean of its divisors is an integer number (2024806896).

Almost surely, 2^16115426209 is an apocalyptic number.

It is an amenable number.

16115426209 is a deficient number, since it is larger than the sum of its proper divisors (83028959).

16115426209 is a wasteful number, since it uses less digits than its factorization.

16115426209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53015.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 16115426209 in words is "sixteen billion, one hundred fifteen million, four hundred twenty-six thousand, two hundred nine".