12157195567 has 16 divisors (see below), whose sum is σ = 14200336800. Its totient is φ = 10284989440.

The previous prime is 12157195549. The next prime is 12157195607. The reversal of 12157195567 is 76559175121.

It is not a de Polignac number, because 12157195567 - 2¹¹ = 12157193519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12157195567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157195867) 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, 348592 + ... + 381877.

It is an arithmetic number, because the mean of its divisors is an integer number (887521050).

Almost surely, 2^12157195567 is an apocalyptic number.

12157195567 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12157195567 is a deficient number, since it is larger than the sum of its proper divisors (2043141233).

12157195567 is a wasteful number, since it uses less digits than its factorization.

12157195567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730586.

The product of its digits is 661500, while the sum is 49.

The spelling of 12157195567 in words is "twelve billion, one hundred fifty-seven million, one hundred ninety-five thousand, five hundred sixty-seven".