2399478016056 has 64 divisors (see below), whose sum is σ = 6559214630400. Its totient is φ = 725427475200.

The previous prime is 2399478016049. The next prime is 2399478016079. The reversal of 2399478016056 is 6506108749932.

It is a congruent number.

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, 10430221 + ... + 10657788.

It is an arithmetic number, because the mean of its divisors is an integer number (102487728600).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2399478016056 = 4798956032112, but 3⋅2399478016056 = 7198434048168 is not.

Almost surely, 2^{2399478016056} is an apocalyptic number.

It is an amenable number.

2399478016056 is an abundant number, since it is smaller than the sum of its proper divisors (4159736614344).

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

2399478016056 is a wasteful number, since it uses less digits than its factorization.

2399478016056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21088460 (or 21088456 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 2399478016056 in words is "two trillion, three hundred ninety-nine billion, four hundred seventy-eight million, sixteen thousand, fifty-six".