6666670677407 has 32 divisors (see below), whose sum is σ = 7615480384512. Its totient is φ = 5781455691264.

The previous prime is 6666670677379. The next prime is 6666670677431. The reversal of 6666670677407 is 7047760766666.

It is a cyclic number.

It is not a de Polignac number, because 6666670677407 - 2¹⁶ = 6666670611871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666670677907) 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, 315004808 + ... + 315025970.

It is an arithmetic number, because the mean of its divisors is an integer number (237983762016).

Almost surely, 2^{6666670677407} is an apocalyptic number.

6666670677407 is a deficient number, since it is larger than the sum of its proper divisors (948809707105).

6666670677407 is a wasteful number, since it uses less digits than its factorization.

6666670677407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23687.

The product of its (nonzero) digits is 448084224, while the sum is 68.

The spelling of 6666670677407 in words is "six trillion, six hundred sixty-six billion, six hundred seventy million, six hundred seventy-seven thousand, four hundred seven".