12066845990 has 64 divisors (see below), whose sum is σ = 23214905856. Its totient is φ = 4500168192.

The previous prime is 12066845977. The next prime is 12066846013. The reversal of 12066845990 is 9954866021.

It is a congruent number.

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, 12275039 + ... + 12276021.

It is an arithmetic number, because the mean of its divisors is an integer number (362732904).

Almost surely, 2^12066845990 is an apocalyptic number.

12066845990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12066845990 is a deficient number, since it is larger than the sum of its proper divisors (11148059866).

12066845990 is a wasteful number, since it uses less digits than its factorization.

12066845990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 12066845990 in words is "twelve billion, sixty-six million, eight hundred forty-five thousand, nine hundred ninety".