16811120120 has 32 divisors (see below), whose sum is σ = 38747585520. Its totient is φ = 6560436480.

The previous prime is 16811120119. The next prime is 16811120153. The reversal of 16811120120 is 2102111861.

It is a super-2 number, since 2×16811120120² (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 in 7 ways as a sum of consecutive naturals, for example, 5123702 + ... + 5126981.

Almost surely, 2^16811120120 is an apocalyptic number.

16811120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16811120120 is an abundant number, since it is smaller than the sum of its proper divisors (21936465400).

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

16811120120 is a wasteful number, since it uses less digits than its factorization.

16811120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250735 (or 10250731 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 16811120120 its reverse (2102111861), we get a palindrome (18913231981).

The spelling of 16811120120 in words is "sixteen billion, eight hundred eleven million, one hundred twenty thousand, one hundred twenty".