662020660 has 48 divisors (see below), whose sum is σ = 1604615040. Its totient is φ = 224726400.

The previous prime is 662020649. The next prime is 662020691. The reversal of 662020660 is 66020266.

662020660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 9270 + ... + 37549.

It is an arithmetic number, because the mean of its divisors is an integer number (33429480).

Almost surely, 2^662020660 is an apocalyptic number.

It is an amenable number.

662020660 is an abundant number, since it is smaller than the sum of its proper divisors (942594380).

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

662020660 is a wasteful number, since it uses less digits than its factorization.

662020660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46936 (or 46934 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 662020660 is about 25729.7621442562. The cubic root of 662020660 is about 871.5464019268.

It can be divided in two parts, 6620206 and 60, that added together give a palindrome (6620266).

The spelling of 662020660 in words is "six hundred sixty-two million, twenty thousand, six hundred sixty".