6425120016 has 160 divisors (see below), whose sum is σ = 21757337600. Its totient is φ = 1776504960.

The previous prime is 6425119999. The next prime is 6425120021. The reversal of 6425120016 is 6100215246.

6425120016 is a `hidden beast` number, since 642 + 5 + 1 + 2 + 0 + 0 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 59475 + ... + 128013.

It is an arithmetic number, because the mean of its divisors is an integer number (135983360).

Almost surely, 2^6425120016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6425120016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10878668800).

6425120016 is an abundant number, since it is smaller than the sum of its proper divisors (15332217584).

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

6425120016 is a wasteful number, since it uses less digits than its factorization.

6425120016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68594 (or 68582 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6425120016 is about 80156.8463451501. The cubic root of 6425120016 is about 1859.0614619863.

The spelling of 6425120016 in words is "six billion, four hundred twenty-five million, one hundred twenty thousand, sixteen".