670125043165 has 4 divisors (see below), whose sum is σ = 804150051804. Its totient is φ = 536100034528.

The previous prime is 670125043129. The next prime is 670125043169. The reversal of 670125043165 is 561340521076.

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 107975988409 + 562149054756 = 328597^2 + 749766^2 .

It is a cyclic number.

It is not a de Polignac number, because 670125043165 - 2¹³ = 670125034973 is a prime.

It is a super-5 number, since 5×670125043165⁵ (a number of 60 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670125043169) 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, 67012504312 + ... + 67012504321.

It is an arithmetic number, because the mean of its divisors is an integer number (201037512951).

Almost surely, 2^670125043165 is an apocalyptic number.

It is an amenable number.

670125043165 is a deficient number, since it is larger than the sum of its proper divisors (134025008639).

670125043165 is a wasteful number, since it uses less digits than its factorization.

670125043165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134025008638.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 670125043165 in words is "six hundred seventy billion, one hundred twenty-five million, forty-three thousand, one hundred sixty-five".