16985154698 has 4 divisors (see below), whose sum is σ = 25477732050. Its totient is φ = 8492577348.

The previous prime is 16985154677. The next prime is 16985154707. The reversal of 16985154698 is 89645158961.

16985154698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89645158961 = 23 ⋅3897615607.

It can be written as a sum of positive squares in only one way, i.e., 16403717929 + 581436769 = 128077^2 + 24113^2 .

It is a super-2 number, since 2×16985154698² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16985154698.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246288673 + ... + 4246288676.

Almost surely, 2^16985154698 is an apocalyptic number.

16985154698 is a deficient number, since it is larger than the sum of its proper divisors (8492577352).

16985154698 is an equidigital number, since it uses as much as digits as its factorization.

16985154698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492577351.

The product of its digits is 18662400, while the sum is 62.

The spelling of 16985154698 in words is "sixteen billion, nine hundred eighty-five million, one hundred fifty-four thousand, six hundred ninety-eight".