663562532 has 24 divisors (see below), whose sum is σ = 1192181760. Its totient is φ = 322975040.

The previous prime is 663562511. The next prime is 663562561. The reversal of 663562532 is 235265366.

It is a super-6 number, since 6×663562532⁶ (a number of 54 digits) contains 666666 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 74333 + ... + 82779.

It is an arithmetic number, because the mean of its divisors is an integer number (49674240).

Almost surely, 2^663562532 is an apocalyptic number.

It is an amenable number.

663562532 is a deficient number, since it is larger than the sum of its proper divisors (528619228).

663562532 is a wasteful number, since it uses less digits than its factorization.

663562532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971 (or 8969 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The square root of 663562532 is about 25759.7075293956. The cubic root of 663562532 is about 872.2224991941. Note that the first 3 decimals are identical.

The spelling of 663562532 in words is "six hundred sixty-three million, five hundred sixty-two thousand, five hundred thirty-two".