16817911137 has 6 divisors (see below), whose sum is σ = 24292538322. Its totient is φ = 11211940752.

The previous prime is 16817911127. The next prime is 16817911141. The reversal of 16817911137 is 73111971861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10192113936 + 6625797201 = 100956^2 + 81399^2 .

It is not a de Polignac number, because 16817911137 - 2²⁷ = 16683693409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16817911092 and 16817911101.

It is not an unprimeable number, because it can be changed into a prime (16817911127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 934328388 + ... + 934328405.

It is an arithmetic number, because the mean of its divisors is an integer number (4048756387).

Almost surely, 2^16817911137 is an apocalyptic number.

It is an amenable number.

16817911137 is a deficient number, since it is larger than the sum of its proper divisors (7474627185).

16817911137 is a wasteful number, since it uses less digits than its factorization.

16817911137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868656799 (or 1868656796 counting only the distinct ones).

The product of its digits is 63504, while the sum is 45.

The spelling of 16817911137 in words is "sixteen billion, eight hundred seventeen million, nine hundred eleven thousand, one hundred thirty-seven".