1663000688 has 40 divisors (see below), whose sum is σ = 3394782720. Its totient is φ = 787008960.

The previous prime is 1663000657. The next prime is 1663000693. The reversal of 1663000688 is 8860003661.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474623 + ... + 478113.

It is an arithmetic number, because the mean of its divisors is an integer number (84869568).

Almost surely, 2^1663000688 is an apocalyptic number.

It is an amenable number.

1663000688 is an abundant number, since it is smaller than the sum of its proper divisors (1731782032).

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

1663000688 is a wasteful number, since it uses less digits than its factorization.

1663000688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 5079 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1663000688 is about 40779.9054437354. The cubic root of 1663000688 is about 1184.7611636850.

The spelling of 1663000688 in words is "one billion, six hundred sixty-three million, six hundred eighty-eight", and thus it is an aban number.