16853538012 has 24 divisors (see below), whose sum is σ = 39387261312. Its totient is φ = 5608940400.

The previous prime is 16853538001. The next prime is 16853538017. The reversal of 16853538012 is 21083535861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853538017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105314 + ... + 1120457.

It is an arithmetic number, because the mean of its divisors is an integer number (1641135888).

Almost surely, 2^16853538012 is an apocalyptic number.

16853538012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16853538012 is an abundant number, since it is smaller than the sum of its proper divisors (22533723300).

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

16853538012 is a wasteful number, since it uses less digits than its factorization.

16853538012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226409 (or 2226407 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 16853538012 in words is "sixteen billion, eight hundred fifty-three million, five hundred thirty-eight thousand, twelve".