665463254404 has 48 divisors (see below), whose sum is σ = 1260219063600. Its totient is φ = 305649985536.

The previous prime is 665463254399. The next prime is 665463254459. The reversal of 665463254404 is 404452364566.

665463254404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 30649504900 + 634813749504 = 175070^2 + 796752^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27340512 + ... + 27364840.

It is an arithmetic number, because the mean of its divisors is an integer number (26254563825).

Almost surely, 2^665463254404 is an apocalyptic number.

It is an amenable number.

665463254404 is a deficient number, since it is larger than the sum of its proper divisors (594755809196).

665463254404 is a wasteful number, since it uses less digits than its factorization.

665463254404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872 (or 26870 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 665463254404 in words is "six hundred sixty-five billion, four hundred sixty-three million, two hundred fifty-four thousand, four hundred four".