662887680 has 432 divisors, whose sum is σ = 2661974784. Its totient is φ = 139345920.

The previous prime is 662887679. The next prime is 662887721. The reversal of 662887680 is 86788266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2445945 + ... + 2446215.

Almost surely, 2^662887680 is an apocalyptic number.

662887680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662887680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330987392).

662887680 is an abundant number, since it is smaller than the sum of its proper divisors (1999087104).

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

662887680 is a wasteful number, since it uses less digits than its factorization.

662887680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 662887680 is about 25746.6052131150. The cubic root of 662887680 is about 871.9267115691.

The spelling of 662887680 in words is "six hundred sixty-two million, eight hundred eighty-seven thousand, six hundred eighty".