12194720659 has 16 divisors (see below), whose sum is σ = 13501555200. Its totient is φ = 10921176000.

The previous prime is 12194720641. The next prime is 12194720663. The reversal of 12194720659 is 95602749121.

It is a cyclic number.

It is not a de Polignac number, because 12194720659 - 2¹⁷ = 12194589587 is a prime.

It is a super-2 number, since 2×12194720659² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12194720669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087039 + ... + 1098199.

It is an arithmetic number, because the mean of its divisors is an integer number (843847200).

Almost surely, 2^12194720659 is an apocalyptic number.

12194720659 is a deficient number, since it is larger than the sum of its proper divisors (1306834541).

12194720659 is a wasteful number, since it uses less digits than its factorization.

12194720659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12642.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 12194720659 in words is "twelve billion, one hundred ninety-four million, seven hundred twenty thousand, six hundred fifty-nine".