663533542 has 32 divisors (see below), whose sum is σ = 1204358400. Its totient is φ = 267828768.

The previous prime is 663533531. The next prime is 663533557. The reversal of 663533542 is 245335366.

It is a super-2 number, since 2×663533542² = 880553522718131528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38809 + ... + 53227.

It is an arithmetic number, because the mean of its divisors is an integer number (37636200).

Almost surely, 2^663533542 is an apocalyptic number.

663533542 is a deficient number, since it is larger than the sum of its proper divisors (540824858).

663533542 is a wasteful number, since it uses less digits than its factorization.

663533542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620.

The product of its digits is 194400, while the sum is 37.

The square root of 663533542 is about 25759.1448227615. The cubic root of 663533542 is about 872.2097970009.

The spelling of 663533542 in words is "six hundred sixty-three million, five hundred thirty-three thousand, five hundred forty-two".