12020668548 has 96 divisors (see below), whose sum is σ = 33198197760. Its totient is φ = 3312274560.

The previous prime is 12020668537. The next prime is 12020668603. The reversal of 12020668548 is 84586602021.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2655415 + ... + 2659937.

It is an arithmetic number, because the mean of its divisors is an integer number (345814560).

Almost surely, 2^12020668548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020668548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16599098880).

12020668548 is an abundant number, since it is smaller than the sum of its proper divisors (21177529212).

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

12020668548 is a wasteful number, since it uses less digits than its factorization.

12020668548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5655 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 12020668548 in words is "twelve billion, twenty million, six hundred sixty-eight thousand, five hundred forty-eight".