12018947660 has 24 divisors (see below), whose sum is σ = 25244696736. Its totient is φ = 4806644480.

The previous prime is 12018947639. The next prime is 12018947713. The reversal of 12018947660 is 6674981021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52145 + ... + 163575.

It is an arithmetic number, because the mean of its divisors is an integer number (1051862364).

Almost surely, 2^12018947660 is an apocalyptic number.

12018947660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12018947660 is an abundant number, since it is smaller than the sum of its proper divisors (13225749076).

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

12018947660 is a wasteful number, since it uses less digits than its factorization.

12018947660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116833 (or 116831 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 12018947660 in words is "twelve billion, eighteen million, nine hundred forty-seven thousand, six hundred sixty".