16810938649706 has 4 divisors (see below), whose sum is σ = 25216407974562. Its totient is φ = 8405469324852.

The previous prime is 16810938649669. The next prime is 16810938649727. The reversal of 16810938649706 is 60794683901861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12870550878025 + 3940387771681 = 3587555^2 + 1985041^2 .

It is a super-3 number, since 3×16810938649706³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202734662425 + ... + 4202734662428.

Almost surely, 2^{16810938649706} is an apocalyptic number.

16810938649706 is a deficient number, since it is larger than the sum of its proper divisors (8405469324856).

16810938649706 is an equidigital number, since it uses as much as digits as its factorization.

16810938649706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405469324855.

The product of its (nonzero) digits is 94058496, while the sum is 68.

The spelling of 16810938649706 in words is "sixteen trillion, eight hundred ten billion, nine hundred thirty-eight million, six hundred forty-nine thousand, seven hundred six".