16855801936 has 10 divisors (see below), whose sum is σ = 32658116282. Its totient is φ = 8427900960.

The previous prime is 16855801927. The next prime is 16855801997. The reversal of 16855801936 is 63910855861.

It can be written as a sum of positive squares in only one way, i.e., 8527414336 + 8328387600 = 92344^2 + 91260^2 .

It is a super-2 number, since 2×16855801936² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526743795 + ... + 526743826.

Almost surely, 2^16855801936 is an apocalyptic number.

16855801936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16855801936 is a deficient number, since it is larger than the sum of its proper divisors (15802314346).

16855801936 is a wasteful number, since it uses less digits than its factorization.

16855801936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053487629 (or 1053487623 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 16855801936 in words is "sixteen billion, eight hundred fifty-five million, eight hundred one thousand, nine hundred thirty-six".