662565120 has 216 divisors, whose sum is σ = 2433864384. Its totient is φ = 150478848.

The previous prime is 662565083. The next prime is 662565133. The reversal of 662565120 is 21565266.

It is a happy number.

662565120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×662565120² = 877985076481228800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4220082 + ... + 4220238.

Almost surely, 2^662565120 is an apocalyptic number.

662565120 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 662565120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216932192).

662565120 is an abundant number, since it is smaller than the sum of its proper divisors (1771299264).

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

662565120 is an equidigital number, since it uses as much as digits as its factorization.

662565120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 662565120 is about 25740.3403240905. The cubic root of 662565120 is about 871.7852626132.

The spelling of 662565120 in words is "six hundred sixty-two million, five hundred sixty-five thousand, one hundred twenty".