670551266 has 72 divisors (see below), whose sum is σ = 1315921152. Its totient is φ = 250588800.

The previous prime is 670551263. The next prime is 670551307. The reversal of 670551266 is 662155076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670551263) 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 35 ways as a sum of consecutive naturals, for example, 5934026 + ... + 5934138.

Almost surely, 2^670551266 is an apocalyptic number.

670551266 is a deficient number, since it is larger than the sum of its proper divisors (645369886).

670551266 is a wasteful number, since it uses less digits than its factorization.

670551266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 670551266 is about 25895.0046534076. The cubic root of 670551266 is about 875.2739348022.

The spelling of 670551266 in words is "six hundred seventy million, five hundred fifty-one thousand, two hundred sixty-six".