665170852448 has 48 divisors (see below), whose sum is σ = 1357658302896. Its totient is φ = 320564213760.

The previous prime is 665170852447. The next prime is 665170852453. The reversal of 665170852448 is 844258071566.

It is a junction number, because it is equal to n+sod(n) for n = 665170852393 and 665170852402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665170852447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945261 + ... + 3163052.

It is an arithmetic number, because the mean of its divisors is an integer number (28284547977).

Almost surely, 2^665170852448 is an apocalyptic number.

It is an amenable number.

665170852448 is an abundant number, since it is smaller than the sum of its proper divisors (692487450448).

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

665170852448 is a wasteful number, since it uses less digits than its factorization.

665170852448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108447 (or 6108439 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 665170852448 in words is "six hundred sixty-five billion, one hundred seventy million, eight hundred fifty-two thousand, four hundred forty-eight".