660963149 has 8 divisors (see below), whose sum is σ = 824058048. Its totient is φ = 515036160.

The previous prime is 660963143. The next prime is 660963169. The reversal of 660963149 is 941369066.

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 660963149 - 2⁴ = 660963133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660963143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4291892 + ... + 4292045.

It is an arithmetic number, because the mean of its divisors is an integer number (103007256).

Almost surely, 2^660963149 is an apocalyptic number.

It is an amenable number.

660963149 is a deficient number, since it is larger than the sum of its proper divisors (163094899).

660963149 is a wasteful number, since it uses less digits than its factorization.

660963149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8583955.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 660963149 is about 25709.2035854867. The cubic root of 660963149 is about 871.0820855508.

The spelling of 660963149 in words is "six hundred sixty million, nine hundred sixty-three thousand, one hundred forty-nine".