662555120 has 80 divisors (see below), whose sum is σ = 1577711520. Its totient is φ = 258665472.

The previous prime is 662555119. The next prime is 662555167. The reversal of 662555120 is 21555266.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1301426 + ... + 1301934.

It is an arithmetic number, because the mean of its divisors is an integer number (19721394).

Almost surely, 2^662555120 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 662555120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788855760).

662555120 is an abundant number, since it is smaller than the sum of its proper divisors (915156400).

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

662555120 is a wasteful number, since it uses less digits than its factorization.

662555120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 662555120 is about 25740.1460757316. The cubic root of 662555120 is about 871.7808766813.

The spelling of 662555120 in words is "six hundred sixty-two million, five hundred fifty-five thousand, one hundred twenty".