660616311 has 8 divisors (see below), whose sum is σ = 932634864. Its totient is φ = 414504320.

The previous prime is 660616291. The next prime is 660616321. The reversal of 660616311 is 113616066.

660616311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 660616311 - 2⁷ = 660616183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660616321) 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, 6476580 + ... + 6476681.

It is an arithmetic number, because the mean of its divisors is an integer number (116579358).

Almost surely, 2^660616311 is an apocalyptic number.

660616311 is a deficient number, since it is larger than the sum of its proper divisors (272018553).

660616311 is a wasteful number, since it uses less digits than its factorization.

660616311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12953281.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 660616311 is about 25702.4572949747. The cubic root of 660616311 is about 870.9296931769.

The spelling of 660616311 in words is "six hundred sixty million, six hundred sixteen thousand, three hundred eleven".