1663461476699 has 8 divisors (see below), whose sum is σ = 1858945863600. Its totient is φ = 1475353859200.

The previous prime is 1663461476669. The next prime is 1663461476707. The reversal of 1663461476699 is 9966741643661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1663461476699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1663461476609) 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, 1844191874 + ... + 1844192775.

It is an arithmetic number, because the mean of its divisors is an integer number (232368232950).

Almost surely, 2^{1663461476699} is an apocalyptic number.

1663461476699 is a deficient number, since it is larger than the sum of its proper divisors (195484386901).

1663461476699 is a wasteful number, since it uses less digits than its factorization.

1663461476699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688384701.

The product of its digits is 211631616, while the sum is 68.

The spelling of 1663461476699 in words is "one trillion, six hundred sixty-three billion, four hundred sixty-one million, four hundred seventy-six thousand, six hundred ninety-nine".