18866419241996 has 24 divisors (see below), whose sum is σ = 33521638983840. Its totient is φ = 9289128643200.

The previous prime is 18866419241987. The next prime is 18866419242091. The reversal of 18866419241996 is 69914291466881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39831545 + ... + 40302416.

It is an arithmetic number, because the mean of its divisors is an integer number (1396734957660).

Almost surely, 2^{18866419241996} is an apocalyptic number.

It is an amenable number.

18866419241996 is a deficient number, since it is larger than the sum of its proper divisors (14655219741844).

18866419241996 is a wasteful number, since it uses less digits than its factorization.

18866419241996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80134865 (or 80134863 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 74.

The spelling of 18866419241996 in words is "eighteen trillion, eight hundred sixty-six billion, four hundred nineteen million, two hundred forty-one thousand, nine hundred ninety-six".