2591440016 has 40 divisors (see below), whose sum is σ = 5799566304. Its totient is φ = 1108636160.

The previous prime is 2591439997. The next prime is 2591440037. The reversal of 2591440016 is 6100441952.

It is a super-2 number, since 2×2591440016² = 13431122713052160512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430070 + ... + 436053.

Almost surely, 2^2591440016 is an apocalyptic number.

It is an amenable number.

2591440016 is an abundant number, since it is smaller than the sum of its proper divisors (3208126288).

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

2591440016 is a wasteful number, since it uses less digits than its factorization.

2591440016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866159 (or 866153 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2591440016 is about 50906.1883860892. The cubic root of 2591440016 is about 1373.5581608435.

Adding to 2591440016 its reverse (6100441952), we get a palindrome (8691881968).

The spelling of 2591440016 in words is "two billion, five hundred ninety-one million, four hundred forty thousand, sixteen".