16820817134 has 16 divisors (see below), whose sum is σ = 27531190656. Its totient is φ = 7644099000.

The previous prime is 16820817103. The next prime is 16820817151. The reversal of 16820817134 is 43171802861.

It is a junction number, because it is equal to n+sod(n) for n = 16820817091 and 16820817100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15959 + ... + 184109.

It is an arithmetic number, because the mean of its divisors is an integer number (1720699416).

Almost surely, 2^16820817134 is an apocalyptic number.

16820817134 is a deficient number, since it is larger than the sum of its proper divisors (10710373522).

16820817134 is a wasteful number, since it uses less digits than its factorization.

16820817134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172711.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 16820817134 in words is "sixteen billion, eight hundred twenty million, eight hundred seventeen thousand, one hundred thirty-four".