16749022851 has 18 divisors (see below), whose sum is σ = 26394428892. Its totient is φ = 10150142520.

The previous prime is 16749022811. The next prime is 16749022859. The reversal of 16749022851 is 15822094761.

16749022851 is a `hidden beast` number, since 1 + 67 + 490 + 22 + 85 + 1 = 666.

It is not a de Polignac number, because 16749022851 - 2³¹ = 14601539203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16749022797 and 16749022806.

It is not an unprimeable number, because it can be changed into a prime (16749022859) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1281190 + ... + 1294196.

Almost surely, 2^16749022851 is an apocalyptic number.

16749022851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16749022851 is a deficient number, since it is larger than the sum of its proper divisors (9645406041).

16749022851 is an frugal number, since it uses more digits than its factorization.

16749022851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26031 (or 13021 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 16749022851 in words is "sixteen billion, seven hundred forty-nine million, twenty-two thousand, eight hundred fifty-one".