12164157775 has 96 divisors (see below), whose sum is σ = 20104713216. Its totient is φ = 7075200000.

The previous prime is 12164157773. The next prime is 12164157787. The reversal of 12164157775 is 57775146121.

It is not a de Polignac number, because 12164157775 - 2¹ = 12164157773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164157773) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1811925 + ... + 1818625.

It is an arithmetic number, because the mean of its divisors is an integer number (209424096).

Almost surely, 2^12164157775 is an apocalyptic number.

12164157775 is a deficient number, since it is larger than the sum of its proper divisors (7940555441).

12164157775 is a wasteful number, since it uses less digits than its factorization.

12164157775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793 (or 6788 counting only the distinct ones).

The product of its digits is 411600, while the sum is 46.

The spelling of 12164157775 in words is "twelve billion, one hundred sixty-four million, one hundred fifty-seven thousand, seven hundred seventy-five".