1663159452 has 24 divisors (see below), whose sum is σ = 4084953600. Its totient is φ = 525208176.

The previous prime is 1663159447. The next prime is 1663159457. The reversal of 1663159452 is 2549513661.

It is an interprime number because it is at equal distance from previous prime (1663159447) and next prime (1663159457).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663159457) 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, 3647052 + ... + 3647507.

It is an arithmetic number, because the mean of its divisors is an integer number (170206400).

Almost surely, 2^1663159452 is an apocalyptic number.

1663159452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1663159452 is an abundant number, since it is smaller than the sum of its proper divisors (2421794148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663159452 is a wasteful number, since it uses less digits than its factorization.

1663159452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294585 (or 7294583 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 1663159452 is about 40781.8519932580. The cubic root of 1663159452 is about 1184.7988648992.

The spelling of 1663159452 in words is "one billion, six hundred sixty-three million, one hundred fifty-nine thousand, four hundred fifty-two".