667670586627 has 24 divisors (see below), whose sum is σ = 983606258880. Its totient is φ = 399526579920.

The previous prime is 667670586571. The next prime is 667670586637. The reversal of 667670586627 is 726685076766.

It is not a de Polignac number, because 667670586627 - 2¹¹ = 667670584579 is a prime.

It is a super-2 number, since 2×667670586627² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667670586637) 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 23 ways as a sum of consecutive naturals, for example, 1414977 + ... + 1826882.

It is an arithmetic number, because the mean of its divisors is an integer number (40983594120).

Almost surely, 2^667670586627 is an apocalyptic number.

667670586627 is a deficient number, since it is larger than the sum of its proper divisors (315935672253).

667670586627 is a wasteful number, since it uses less digits than its factorization.

667670586627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242031 (or 3241952 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 66.

The spelling of 667670586627 in words is "six hundred sixty-seven billion, six hundred seventy million, five hundred eighty-six thousand, six hundred twenty-seven".