16425431444240 has 80 divisors (see below), whose sum is σ = 47002003845888. Its totient is φ = 5198378300928.

The previous prime is 16425431444231. The next prime is 16425431444263. The reversal of 16425431444240 is 4244413452461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 16425431444191 and 16425431444200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128113012 + ... + 1128127571.

Almost surely, 2^{16425431444240} is an apocalyptic number.

16425431444240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16425431444240 is an abundant number, since it is smaller than the sum of its proper divisors (30576572401648).

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

16425431444240 is a wasteful number, since it uses less digits than its factorization.

16425431444240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256240616 (or 2256240610 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 16425431444240 in words is "sixteen trillion, four hundred twenty-five billion, four hundred thirty-one million, four hundred forty-four thousand, two hundred forty".