666260067 has 32 divisors (see below), whose sum is σ = 1015211520. Its totient is φ = 384721920.

The previous prime is 666260059. The next prime is 666260083. The reversal of 666260067 is 760062666.

It is not a de Polignac number, because 666260067 - 2³ = 666260059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666260087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208659 + ... + 211827.

It is an arithmetic number, because the mean of its divisors is an integer number (31725360).

Almost surely, 2^666260067 is an apocalyptic number.

666260067 is a deficient number, since it is larger than the sum of its proper divisors (348951453).

666260067 is a wasteful number, since it uses less digits than its factorization.

666260067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 666260067 is about 25812.0140051101. The cubic root of 666260067 is about 873.4028298554.

The spelling of 666260067 in words is "six hundred sixty-six million, two hundred sixty thousand, sixty-seven".