12146481556 has 24 divisors (see below), whose sum is σ = 23249953440. Its totient is φ = 5506552800.

The previous prime is 12146481517. The next prime is 12146481559. The reversal of 12146481556 is 65518464121.

It is a super-2 number, since 2×12146481556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146481559) by changing a digit.

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, 347515 + ... + 380866.

It is an arithmetic number, because the mean of its divisors is an integer number (968748060).

Almost surely, 2^12146481556 is an apocalyptic number.

It is an amenable number.

12146481556 is a deficient number, since it is larger than the sum of its proper divisors (11103471884).

12146481556 is a wasteful number, since it uses less digits than its factorization.

12146481556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728775 (or 728773 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The spelling of 12146481556 in words is "twelve billion, one hundred forty-six million, four hundred eighty-one thousand, five hundred fifty-six".