667025082706 has 16 divisors (see below), whose sum is σ = 1027819255320. Its totient is φ = 324422876160.

The previous prime is 667025082701. The next prime is 667025082721. The reversal of 667025082706 is 607280520766.

It can be written as a sum of positive squares in 4 ways, for example, as 640632156025 + 26392926681 = 800395^2 + 162459^2 .

It is a super-2 number, since 2×667025082706² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 667025082706.

It is not an unprimeable number, because it can be changed into a prime (667025082701) 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, 733425 + ... + 1368196.

Almost surely, 2^667025082706 is an apocalyptic number.

667025082706 is a deficient number, since it is larger than the sum of its proper divisors (360794172614).

667025082706 is a wasteful number, since it uses less digits than its factorization.

667025082706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105949.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 667025082706 in words is "six hundred sixty-seven billion, twenty-five million, eighty-two thousand, seven hundred six".