16836561123 has 8 divisors (see below), whose sum is σ = 22467665088. Its totient is φ = 11214915624.

The previous prime is 16836561113. The next prime is 16836561193. The reversal of 16836561123 is 32116563861.

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

It is not a de Polignac number, because 16836561123 - 2⁴ = 16836561107 is a prime.

It is a super-2 number, since 2×16836561123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16836561113) 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, 2360461 + ... + 2367582.

It is an arithmetic number, because the mean of its divisors is an integer number (2808458136).

Almost surely, 2^16836561123 is an apocalyptic number.

16836561123 is a deficient number, since it is larger than the sum of its proper divisors (5631103965).

16836561123 is a wasteful number, since it uses less digits than its factorization.

16836561123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729233.

The product of its digits is 155520, while the sum is 42.

The spelling of 16836561123 in words is "sixteen billion, eight hundred thirty-six million, five hundred sixty-one thousand, one hundred twenty-three".