6425145164 has 12 divisors (see below), whose sum is σ = 11547896304. Its totient is φ = 3125746224.

The previous prime is 6425145143. The next prime is 6425145169. The reversal of 6425145164 is 4615415246.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6425145169) 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, 21706424 + ... + 21706719.

It is an arithmetic number, because the mean of its divisors is an integer number (962324692).

Almost surely, 2^6425145164 is an apocalyptic number.

It is an amenable number.

6425145164 is a deficient number, since it is larger than the sum of its proper divisors (5122751140).

6425145164 is a wasteful number, since it uses less digits than its factorization.

6425145164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43413184 (or 43413182 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 6425145164 is about 80157.0032124455. The cubic root of 6425145164 is about 1859.0638874464.

The spelling of 6425145164 in words is "six billion, four hundred twenty-five million, one hundred forty-five thousand, one hundred sixty-four".