2016431540425 has 48 divisors (see below), whose sum is σ = 2676052315440. Its totient is φ = 1501870325760.

The previous prime is 2016431540399. The next prime is 2016431540471. The reversal of 2016431540425 is 5240451346102.

It can be written as a sum of positive squares in 24 ways, for example, as 1898740690704 + 117690849721 = 1377948^2 + 343061^2 .

It is not a de Polignac number, because 2016431540425 - 2¹⁷ = 2016431409353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93528747 + ... + 93550303.

It is an arithmetic number, because the mean of its divisors is an integer number (55751089905).

Almost surely, 2^{2016431540425} is an apocalyptic number.

2016431540425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2016431540425 is a deficient number, since it is larger than the sum of its proper divisors (659620775015).

2016431540425 is a wasteful number, since it uses less digits than its factorization.

2016431540425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23950 (or 23945 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 2016431540425 its reverse (5240451346102), we get a palindrome (7256882886527).

The spelling of 2016431540425 in words is "two trillion, sixteen billion, four hundred thirty-one million, five hundred forty thousand, four hundred twenty-five".