245574120017668 has 48 divisors (see below), whose sum is σ = 467414627372784. Its totient is φ = 112215008678400.

The previous prime is 245574120017663. The next prime is 245574120017669. The reversal of 245574120017668 is 866710021475542.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9506812889344 + 236067307128324 = 3083312^2 + 15364482^2 .

It is not an unprimeable number, because it can be changed into a prime (245574120017663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 126116446 + ... + 128048842.

It is an arithmetic number, because the mean of its divisors is an integer number (9737804736933).

Almost surely, 2^{245574120017668} is an apocalyptic number.

It is an amenable number.

245574120017668 is a deficient number, since it is larger than the sum of its proper divisors (221840507355116).

245574120017668 is a wasteful number, since it uses less digits than its factorization.

245574120017668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956712 (or 1956710 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 245574120017668 in words is "two hundred forty-five trillion, five hundred seventy-four billion, one hundred twenty million, seventeen thousand, six hundred sixty-eight".