662421560 has 64 divisors (see below), whose sum is σ = 1525495680. Its totient is φ = 258785280.

The previous prime is 662421559. The next prime is 662421581. The reversal of 662421560 is 65124266.

662421560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 573944 + ... + 575096.

It is an arithmetic number, because the mean of its divisors is an integer number (23835870).

Almost surely, 2^662421560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662421560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762747840).

662421560 is an abundant number, since it is smaller than the sum of its proper divisors (863074120).

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

662421560 is a wasteful number, since it uses less digits than its factorization.

662421560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 662421560 is about 25737.5515541009. The cubic root of 662421560 is about 871.7222939435.

The spelling of 662421560 in words is "six hundred sixty-two million, four hundred twenty-one thousand, five hundred sixty".