425044163616 has 96 divisors (see below), whose sum is σ = 1124765611200. Its totient is φ = 140536381440.

The previous prime is 425044163587. The next prime is 425044163629. The reversal of 425044163616 is 616361440524.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 33810580 + ... + 33823148.

It is an arithmetic number, because the mean of its divisors is an integer number (11716308450).

Almost surely, 2^425044163616 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 425044163616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562382805600).

425044163616 is an abundant number, since it is smaller than the sum of its proper divisors (699721447584).

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

425044163616 is a wasteful number, since it uses less digits than its factorization.

425044163616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402 (or 15394 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 425044163616 in words is "four hundred twenty-five billion, forty-four million, one hundred sixty-three thousand, six hundred sixteen".