1663323495 has 8 divisors (see below), whose sum is σ = 2661317616. Its totient is φ = 887105856.

The previous prime is 1663323491. The next prime is 1663323509. The reversal of 1663323495 is 5943233661.

It is a happy number.

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

It is not a de Polignac number, because 1663323495 - 2² = 1663323491 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663323491) 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, 55444102 + ... + 55444131.

It is an arithmetic number, because the mean of its divisors is an integer number (332664702).

Almost surely, 2^1663323495 is an apocalyptic number.

1663323495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1663323495 is a deficient number, since it is larger than the sum of its proper divisors (997994121).

1663323495 is a wasteful number, since it uses less digits than its factorization.

1663323495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110888241.

The product of its digits is 349920, while the sum is 42.

The square root of 1663323495 is about 40783.8631691506. The cubic root of 1663323495 is about 1184.8378171818.

The spelling of 1663323495 in words is "one billion, six hundred sixty-three million, three hundred twenty-three thousand, four hundred ninety-five".