660224377 has 8 divisors (see below), whose sum is σ = 662884992. Its totient is φ = 657570000.

The previous prime is 660224371. The next prime is 660224399. The reversal of 660224377 is 773422066.

It is a happy number.

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 660224377 - 2¹⁹ = 659700089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660224371) by changing a digit.

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, 345258 + ... + 347164.

It is an arithmetic number, because the mean of its divisors is an integer number (82860624).

Almost surely, 2^660224377 is an apocalyptic number.

It is an amenable number.

660224377 is a deficient number, since it is larger than the sum of its proper divisors (2660615).

660224377 is a wasteful number, since it uses less digits than its factorization.

660224377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 660224377 is about 25694.8317176821. The cubic root of 660224377 is about 870.7574224854.

The spelling of 660224377 in words is "six hundred sixty million, two hundred twenty-four thousand, three hundred seventy-seven".