12162187774 has 16 divisors (see below), whose sum is σ = 20949223680. Its totient is φ = 5237305560.

The previous prime is 12162187769. The next prime is 12162187783. The reversal of 12162187774 is 47778126121.

It is a super-2 number, since 2×12162187774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14547654 + ... + 14548489.

It is an arithmetic number, because the mean of its divisors is an integer number (1309326480).

Almost surely, 2^12162187774 is an apocalyptic number.

12162187774 is a deficient number, since it is larger than the sum of its proper divisors (8787035906).

12162187774 is a wasteful number, since it uses less digits than its factorization.

12162187774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29096175.

The product of its digits is 263424, while the sum is 46.

The spelling of 12162187774 in words is "twelve billion, one hundred sixty-two million, one hundred eighty-seven thousand, seven hundred seventy-four".