16627070917 has 8 divisors (see below), whose sum is σ = 17210151000. Its totient is φ = 16044639744.

The previous prime is 16627070909. The next prime is 16627070923. The reversal of 16627070917 is 71907072661.

It is a Cunningham number, because it is equal to 128946²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 8426138436 + 8200932481 = 91794^2 + 90559^2 .

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 16627070917 - 2³ = 16627070909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16627070927) 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, 109792 + ... + 212857.

It is an arithmetic number, because the mean of its divisors is an integer number (2151268875).

Almost surely, 2^16627070917 is an apocalyptic number.

It is an amenable number.

16627070917 is a deficient number, since it is larger than the sum of its proper divisors (583080083).

16627070917 is a wasteful number, since it uses less digits than its factorization.

16627070917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324455.

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 16627070917 in words is "sixteen billion, six hundred twenty-seven million, seventy thousand, nine hundred seventeen".