662558112 has 144 divisors (see below), whose sum is σ = 1958071752. Its totient is φ = 212336640.

The previous prime is 662558089. The next prime is 662558161. The reversal of 662558112 is 211855266.

662558112 is a `hidden beast` number, since 6 + 62 + 5 + 581 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 661312656 + 1245456 = 25716^2 + 1116^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033312 + ... + 1033952.

Almost surely, 2^662558112 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 662558112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979035876).

662558112 is an abundant number, since it is smaller than the sum of its proper divisors (1295513640).

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

662558112 is a wasteful number, since it uses less digits than its factorization.

662558112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 780 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 662558112 is about 25740.2041949943. The cubic root of 662558112 is about 871.7821889567.

The spelling of 662558112 in words is "six hundred sixty-two million, five hundred fifty-eight thousand, one hundred twelve".