660630045 has 8 divisors (see below), whose sum is σ = 1057008096. Its totient is φ = 352336016.

The previous prime is 660630037. The next prime is 660630049. The reversal of 660630045 is 540036066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660630045 - 2³ = 660630037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660629994 and 660630021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660630049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22020987 + ... + 22021016.

It is an arithmetic number, because the mean of its divisors is an integer number (132126012).

Almost surely, 2^660630045 is an apocalyptic number.

It is an amenable number.

660630045 is a deficient number, since it is larger than the sum of its proper divisors (396378051).

660630045 is a wasteful number, since it uses less digits than its factorization.

660630045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44042011.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 660630045 is about 25702.7244664841. The cubic root of 660630045 is about 870.9357285842.

The spelling of 660630045 in words is "six hundred sixty million, six hundred thirty thousand, forty-five".