16749091171206 has 24 divisors (see below), whose sum is σ = 38199681619320. Its totient is φ = 5289186685536.

The previous prime is 16749091171201. The next prime is 16749091171207. The reversal of 16749091171206 is 60217119094761.

It is a happy number.

16749091171206 is a `hidden beast` number, since 1 + 67 + 490 + 9 + 1 + 1 + 71 + 20 + 6 = 666.

It is a super-2 number, since 2×16749091171206² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16749091171201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24486975055 + ... + 24486975738.

It is an arithmetic number, because the mean of its divisors is an integer number (1591653400805).

Almost surely, 2^{16749091171206} is an apocalyptic number.

16749091171206 is an abundant number, since it is smaller than the sum of its proper divisors (21450590448114).

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

16749091171206 is a wasteful number, since it uses less digits than its factorization.

16749091171206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48973950820 (or 48973950817 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 16749091171206 in words is "sixteen trillion, seven hundred forty-nine billion, ninety-one million, one hundred seventy-one thousand, two hundred six".