6425213165 has 8 divisors (see below), whose sum is σ = 8811720960. Its totient is φ = 4405860432.

The previous prime is 6425213159. The next prime is 6425213173. The reversal of 6425213165 is 5613125246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6425213165 - 2⁴ = 6425213149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 183577519 = 6425213165 / (6 + 4 + 2 + 5 + 2 + 1 + 3 + 1 + 6 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91788725 + ... + 91788794.

It is an arithmetic number, because the mean of its divisors is an integer number (1101465120).

Almost surely, 2^6425213165 is an apocalyptic number.

It is an amenable number.

6425213165 is a deficient number, since it is larger than the sum of its proper divisors (2386507795).

6425213165 is a wasteful number, since it uses less digits than its factorization.

6425213165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183577531.

The product of its digits is 43200, while the sum is 35.

The square root of 6425213165 is about 80157.4273851151. The cubic root of 6425213165 is about 1859.0704459368.

The spelling of 6425213165 in words is "six billion, four hundred twenty-five million, two hundred thirteen thousand, one hundred sixty-five".