1663446298 has 16 divisors (see below), whose sum is σ = 2577738240. Its totient is φ = 804243600.

The previous prime is 1663446283. The next prime is 1663446299. The reversal of 1663446298 is 8926443661.

It is not an unprimeable number, because it can be changed into a prime (1663446299) 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, 71608 + ... + 91948.

It is an arithmetic number, because the mean of its divisors is an integer number (161108640).

Almost surely, 2^1663446298 is an apocalyptic number.

1663446298 is a deficient number, since it is larger than the sum of its proper divisors (914291942).

1663446298 is a wasteful number, since it uses less digits than its factorization.

1663446298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21693.

The product of its digits is 1492992, while the sum is 49.

The square root of 1663446298 is about 40785.3686755434. The cubic root of 1663446298 is about 1184.8669752816.

The spelling of 1663446298 in words is "one billion, six hundred sixty-three million, four hundred forty-six thousand, two hundred ninety-eight".