985549818816 has 42 divisors (see below), whose sum is σ = 2824900610792. Its totient is φ = 328516606080.

The previous prime is 985549818797. The next prime is 985549818821. The reversal of 985549818816 is 618818945589.

985549818816 is a `hidden beast` number, since 9 + 8 + 55 + 498 + 1 + 8 + 81 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855511420 + ... + 855512571.

Almost surely, 2^985549818816 is an apocalyptic number.

985549818816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

985549818816 is an abundant number, since it is smaller than the sum of its proper divisors (1839350791976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

985549818816 is a wasteful number, since it uses less digits than its factorization.

985549818816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711024009 (or 1711023996 counting only the distinct ones).

The product of its digits is 199065600, while the sum is 72.

The spelling of 985549818816 in words is "nine hundred eighty-five billion, five hundred forty-nine million, eight hundred eighteen thousand, eight hundred sixteen".