670355516687 has 4 divisors (see below), whose sum is σ = 670377000000. Its totient is φ = 670334033376.

The previous prime is 670355516669. The next prime is 670355516693. The reversal of 670355516687 is 786615553076.

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

It is a cyclic number.

It is not a de Polignac number, because 670355516687 - 2¹² = 670355512591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670355516287) 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 3 ways as a sum of consecutive naturals, for example, 10694783 + ... + 10757280.

It is an arithmetic number, because the mean of its divisors is an integer number (167594250000).

Almost surely, 2^670355516687 is an apocalyptic number.

670355516687 is a deficient number, since it is larger than the sum of its proper divisors (21483313).

670355516687 is a wasteful number, since it uses less digits than its factorization.

670355516687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21483312.

The product of its (nonzero) digits is 31752000, while the sum is 59.

The spelling of 670355516687 in words is "six hundred seventy billion, three hundred fifty-five million, five hundred sixteen thousand, six hundred eighty-seven".