1663502419 has 2 divisors, whose sum is σ = 1663502420. Its totient is φ = 1663502418.

The previous prime is 1663502417. The next prime is 1663502453. The reversal of 1663502419 is 9142053661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1663502419 - 2¹ = 1663502417 is a prime.

It is a super-2 number, since 2×1663502419² = 5534480596037703122, which contains 22 as substring.

Together with 1663502417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1663502417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831751209 + 831751210.

It is an arithmetic number, because the mean of its divisors is an integer number (831751210).

Almost surely, 2^1663502419 is an apocalyptic number.

1663502419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663502419 is an equidigital number, since it uses as much as digits as its factorization.

1663502419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1663502419 is about 40786.0566738193. The cubic root of 1663502419 is about 1184.8803000624.

The spelling of 1663502419 in words is "one billion, six hundred sixty-three million, five hundred two thousand, four hundred nineteen".