18960345966 has 16 divisors (see below), whose sum is σ = 37924722000. Its totient is φ = 6319443648.

The previous prime is 18960345961. The next prime is 18960346019. The reversal of 18960345966 is 66954306981.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18960345961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104941 + ... + 221208.

It is an arithmetic number, because the mean of its divisors is an integer number (2370295125).

Almost surely, 2^18960345966 is an apocalyptic number.

18960345966 is an abundant number, since it is smaller than the sum of its proper divisors (18964376034).

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

18960345966 is a wasteful number, since it uses less digits than its factorization.

18960345966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335843.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 18960345966 in words is "eighteen billion, nine hundred sixty million, three hundred forty-five thousand, nine hundred sixty-six".