660200452 has 6 divisors (see below), whose sum is σ = 1155350798. Its totient is φ = 330100224.

The previous prime is 660200449. The next prime is 660200479. The reversal of 660200452 is 254002066.

It can be written as a sum of positive squares in only one way, i.e., 360772036 + 299428416 = 18994^2 + 17304^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82525053 + ... + 82525060.

Almost surely, 2^660200452 is an apocalyptic number.

It is an amenable number.

660200452 is a deficient number, since it is larger than the sum of its proper divisors (495150346).

660200452 is a wasteful number, since it uses less digits than its factorization.

660200452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165050117 (or 165050115 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 660200452 is about 25694.3661529138. The cubic root of 660200452 is about 870.7469042820.

The spelling of 660200452 in words is "six hundred sixty million, two hundred thousand, four hundred fifty-two".