670538666667 has 16 divisors (see below), whose sum is σ = 914540490752. Its totient is φ = 436886382240.

The previous prime is 670538666653. The next prime is 670538666713. The reversal of 670538666667 is 766666835076.

It is not a de Polignac number, because 670538666667 - 2⁸ = 670538666411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670538666598 and 670538666607.

It is not an unprimeable number, because it can be changed into a prime (670538666767) 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 15 ways as a sum of consecutive naturals, for example, 13108384 + ... + 13159437.

It is an arithmetic number, because the mean of its divisors is an integer number (57158780672).

Almost surely, 2^670538666667 is an apocalyptic number.

670538666667 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

670538666667 is a deficient number, since it is larger than the sum of its proper divisors (244001824085).

670538666667 is a wasteful number, since it uses less digits than its factorization.

670538666667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26268018.

The product of its (nonzero) digits is 274337280, while the sum is 66.

The spelling of 670538666667 in words is "six hundred seventy billion, five hundred thirty-eight million, six hundred sixty-six thousand, six hundred sixty-seven".