1660630345 has 8 divisors (see below), whose sum is σ = 2173916160. Its totient is φ = 1207731120.

The previous prime is 1660630333. The next prime is 1660630357. The reversal of 1660630345 is 5430360661.

It is an interprime number because it is at equal distance from previous prime (1660630333) and next prime (1660630357).

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

It is not a de Polignac number, because 1660630345 - 2¹¹ = 1660628297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1660630345.

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 7 ways as a sum of consecutive naturals, for example, 15096585 + ... + 15096694.

It is an arithmetic number, because the mean of its divisors is an integer number (271739520).

Almost surely, 2^1660630345 is an apocalyptic number.

It is an amenable number.

1660630345 is a deficient number, since it is larger than the sum of its proper divisors (513285815).

1660630345 is a wasteful number, since it uses less digits than its factorization.

1660630345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30193295.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 1660630345 is about 40750.8324454851. The cubic root of 1660630345 is about 1184.1979998278.

The spelling of 1660630345 in words is "one billion, six hundred sixty million, six hundred thirty thousand, three hundred forty-five".