12146481558 has 12 divisors (see below), whose sum is σ = 26317376748. Its totient is φ = 4048827180.

The previous prime is 12146481517. The next prime is 12146481559. The reversal of 12146481558 is 85518464121.

12146481558 is a `hidden beast` number, since 1 + 2 + 14 + 6 + 4 + 81 + 558 = 666.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337402248 + ... + 337402283.

It is an arithmetic number, because the mean of its divisors is an integer number (2193114729).

Almost surely, 2^12146481558 is an apocalyptic number.

12146481558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12146481558 is an abundant number, since it is smaller than the sum of its proper divisors (14170895190).

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

12146481558 is a wasteful number, since it uses less digits than its factorization.

12146481558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674804539 (or 674804536 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The spelling of 12146481558 in words is "twelve billion, one hundred forty-six million, four hundred eighty-one thousand, five hundred fifty-eight".