666705337 has 16 divisors (see below), whose sum is σ = 715407552. Its totient is φ = 619107840.

The previous prime is 666705271. The next prime is 666705341. The reversal of 666705337 is 733507666.

It is a cyclic number.

It is not a de Polignac number, because 666705337 - 2¹⁹ = 666181049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666705293 and 666705302.

It is not an unprimeable number, because it can be changed into a prime (666715337) 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 15 ways as a sum of consecutive naturals, for example, 568762 + ... + 569932.

It is an arithmetic number, because the mean of its divisors is an integer number (44712972).

Almost surely, 2^666705337 is an apocalyptic number.

It is an amenable number.

666705337 is a deficient number, since it is larger than the sum of its proper divisors (48702215).

666705337 is a wasteful number, since it uses less digits than its factorization.

666705337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 476280, while the sum is 43.

The square root of 666705337 is about 25820.6378116421. The cubic root of 666705337 is about 873.5973552336.

The spelling of 666705337 in words is "six hundred sixty-six million, seven hundred five thousand, three hundred thirty-seven".