670333666669 has 4 divisors (see below), whose sum is σ = 709765058844. Its totient is φ = 630902274496.

The previous prime is 670333666637. The next prime is 670333666687. The reversal of 670333666669 is 966666333076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 444171597444 + 226162069225 = 666462^2 + 475565^2 .

It is a cyclic number.

It is not a de Polignac number, because 670333666669 - 2⁵ = 670333666637 is a prime.

It is a super-2 number, since 2×670333666669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670333666619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19715696062 + ... + 19715696095.

It is an arithmetic number, because the mean of its divisors is an integer number (177441264711).

Almost surely, 2^670333666669 is an apocalyptic number.

It is an amenable number.

670333666669 is a deficient number, since it is larger than the sum of its proper divisors (39431392175).

670333666669 is a wasteful number, since it uses less digits than its factorization.

670333666669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39431392174.

The product of its (nonzero) digits is 79361856, while the sum is 61.

The spelling of 670333666669 in words is "six hundred seventy billion, three hundred thirty-three million, six hundred sixty-six thousand, six hundred sixty-nine".