6466125920 has 48 divisors (see below), whose sum is σ = 15689107728. Its totient is φ = 2516544000.

The previous prime is 6466125871. The next prime is 6466125929. The reversal of 6466125920 is 295216646.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466125929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540206 + ... + 552045.

It is an arithmetic number, because the mean of its divisors is an integer number (326856411).

Almost surely, 2^6466125920 is an apocalyptic number.

It is an amenable number.

6466125920 is an abundant number, since it is smaller than the sum of its proper divisors (9222981808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6466125920 is a wasteful number, since it uses less digits than its factorization.

6466125920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092303 (or 1092295 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6466125920 is about 80412.2249412364. The cubic root of 6466125920 is about 1863.0079975209.

The spelling of 6466125920 in words is "six billion, four hundred sixty-six million, one hundred twenty-five thousand, nine hundred twenty".