663158040 has 64 divisors (see below), whose sum is σ = 2035756800. Its totient is φ = 172728192.

The previous prime is 663158039. The next prime is 663158063. The reversal of 663158040 is 40851366.

It is a junction number, because it is equal to n+sod(n) for n = 663157992 and 663158010.

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, 59100 + ... + 69419.

It is an arithmetic number, because the mean of its divisors is an integer number (31808700).

Almost surely, 2^663158040 is an apocalyptic number.

663158040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

663158040 is an abundant number, since it is smaller than the sum of its proper divisors (1372598760).

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

663158040 is a wasteful number, since it uses less digits than its factorization.

663158040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128576 (or 128572 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 663158040 is about 25751.8550788094. The cubic root of 663158040 is about 872.0452344461.

The spelling of 663158040 in words is "six hundred sixty-three million, one hundred fifty-eight thousand, forty".