16852240820 has 12 divisors (see below), whose sum is σ = 35389705764. Its totient is φ = 6740896320.

The previous prime is 16852240813. The next prime is 16852240871. The reversal of 16852240820 is 2804225861.

It can be written as a sum of positive squares in 2 ways, for example, as 10107889444 + 6744351376 = 100538^2 + 82124^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421306001 + ... + 421306040.

It is an arithmetic number, because the mean of its divisors is an integer number (2949142147).

Almost surely, 2^16852240820 is an apocalyptic number.

16852240820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16852240820 is an abundant number, since it is smaller than the sum of its proper divisors (18537464944).

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

16852240820 is a wasteful number, since it uses less digits than its factorization.

16852240820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842612050 (or 842612048 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 16852240820 in words is "sixteen billion, eight hundred fifty-two million, two hundred forty thousand, eight hundred twenty".