18260880466 has 16 divisors (see below), whose sum is σ = 27503579160. Its totient is φ = 9093047040.

The previous prime is 18260880461. The next prime is 18260880479. The reversal of 18260880466 is 66408806281.

It can be written as a sum of positive squares in 4 ways, for example, as 8455722025 + 9805158441 = 91955^2 + 99021^2 .

It is not an unprimeable number, because it can be changed into a prime (18260880461) 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, 1984396 + ... + 1993576.

Almost surely, 2^18260880466 is an apocalyptic number.

18260880466 is a deficient number, since it is larger than the sum of its proper divisors (9242698694).

18260880466 is a wasteful number, since it uses less digits than its factorization.

18260880466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13149.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 18260880466 in words is "eighteen billion, two hundred sixty million, eight hundred eighty thousand, four hundred sixty-six".