1663363461 has 8 divisors (see below), whose sum is σ = 2234748384. Its totient is φ = 1100443760.

The previous prime is 1663363451. The next prime is 1663363463. The reversal of 1663363461 is 1643633661.

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

It is a cyclic number.

It is not a de Polignac number, because 1663363461 - 2⁷ = 1663363333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663363463) 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, 2115846 + ... + 2116631.

It is an arithmetic number, because the mean of its divisors is an integer number (279343548).

Almost surely, 2^1663363461 is an apocalyptic number.

It is an amenable number.

1663363461 is a deficient number, since it is larger than the sum of its proper divisors (571384923).

1663363461 is a wasteful number, since it uses less digits than its factorization.

1663363461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232611.

The product of its digits is 139968, while the sum is 39.

The square root of 1663363461 is about 40784.3531394087. The cubic root of 1663363461 is about 1184.8473067868.

The spelling of 1663363461 in words is "one billion, six hundred sixty-three million, three hundred sixty-three thousand, four hundred sixty-one".