660200224424 has 64 divisors (see below), whose sum is σ = 1363155953040. Its totient is φ = 297878630400.

The previous prime is 660200224403. The next prime is 660200224469. The reversal of 660200224424 is 424422002066.

It can be written as a sum of positive squares in 8 ways, for example, as 265461952900 + 394738271524 = 515230^2 + 628282^2 .

It is a super-2 number, since 2×660200224424² (a number of 24 digits) contains 22 as substring.

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, 1310624 + ... + 1743024.

Almost surely, 2^660200224424 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 660200224424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681577976520).

660200224424 is an abundant number, since it is smaller than the sum of its proper divisors (702955728616).

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

660200224424 is a wasteful number, since it uses less digits than its factorization.

660200224424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432750 (or 432746 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 660200224424 in words is "six hundred sixty billion, two hundred million, two hundred twenty-four thousand, four hundred twenty-four".