660042552 has 64 divisors (see below), whose sum is σ = 1838340000. Its totient is φ = 196084224.

The previous prime is 660042547. The next prime is 660042571. The reversal of 660042552 is 255240066.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27427 + ... + 45522.

Almost surely, 2^660042552 is an apocalyptic number.

It is an amenable number.

660042552 is an abundant number, since it is smaller than the sum of its proper divisors (1178297448).

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

660042552 is a wasteful number, since it uses less digits than its factorization.

660042552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73000 (or 72996 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 660042552 is about 25691.2933111589. The cubic root of 660042552 is about 870.6774799637.

The spelling of 660042552 in words is "six hundred sixty million, forty-two thousand, five hundred fifty-two".