16091850194 has 48 divisors (see below), whose sum is σ = 29153153880. Its totient is φ = 6634333440.

The previous prime is 16091850143. The next prime is 16091850199. The reversal of 16091850194 is 49105819061.

It can be written as a sum of positive squares in 4 ways, for example, as 13979988169 + 2111862025 = 118237^2 + 45955^2 .

It is a super-2 number, since 2×16091850194² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16091850199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777014 + ... + 797454.

Almost surely, 2^16091850194 is an apocalyptic number.

16091850194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16091850194 is a deficient number, since it is larger than the sum of its proper divisors (13061303686).

16091850194 is a wasteful number, since it uses less digits than its factorization.

16091850194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20763 (or 20756 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 44.

It can be divided in two parts, 160918 and 50194, that added together give a palindrome (211112).

The spelling of 16091850194 in words is "sixteen billion, ninety-one million, eight hundred fifty thousand, one hundred ninety-four".