18978483066 has 16 divisors (see below), whose sum is σ = 37958536224. Its totient is φ = 6325899344.

The previous prime is 18978483049. The next prime is 18978483067. The reversal of 18978483066 is 66038487981.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18978483067) by changing a digit.

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, 142600 + ... + 241436.

It is an arithmetic number, because the mean of its divisors is an integer number (2372408514).

Almost surely, 2^18978483066 is an apocalyptic number.

18978483066 is an abundant number, since it is smaller than the sum of its proper divisors (18980053158).

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

18978483066 is a wasteful number, since it uses less digits than its factorization.

18978483066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130845.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 18978483066 in words is "eighteen billion, nine hundred seventy-eight million, four hundred eighty-three thousand, sixty-six".