12167997424 has 40 divisors (see below), whose sum is σ = 25757994240. Its totient is φ = 5522462400.

The previous prime is 12167997407. The next prime is 12167997431. The reversal of 12167997424 is 42479976121.

It is a happy number.

It is a super-2 number, since 2×12167997424² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63529 + ... + 168439.

It is an arithmetic number, because the mean of its divisors is an integer number (643949856).

Almost surely, 2^12167997424 is an apocalyptic number.

It is an amenable number.

12167997424 is an abundant number, since it is smaller than the sum of its proper divisors (13589996816).

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

12167997424 is a wasteful number, since it uses less digits than its factorization.

12167997424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105589 (or 105583 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The spelling of 12167997424 in words is "twelve billion, one hundred sixty-seven million, nine hundred ninety-seven thousand, four hundred twenty-four".