12146533020 has 72 divisors (see below), whose sum is σ = 36853938576. Its totient is φ = 3238244352.

The previous prime is 12146533001. The next prime is 12146533027. The reversal of 12146533020 is 2033564121.

12146533020 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 653 + 3 + 0 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146533027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1060444 + ... + 1071836.

It is an arithmetic number, because the mean of its divisors is an integer number (511860258).

Almost surely, 2^12146533020 is an apocalyptic number.

12146533020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12146533020 is an abundant number, since it is smaller than the sum of its proper divisors (24707405556).

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

12146533020 is a wasteful number, since it uses less digits than its factorization.

12146533020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17331 (or 17326 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 12146533020 in words is "twelve billion, one hundred forty-six million, five hundred thirty-three thousand, twenty".