65574946348944 has 80 divisors (see below), whose sum is σ = 181142673805440. Its totient is φ = 20368843724800.

The previous prime is 65574946348831. The next prime is 65574946348949. The reversal of 65574946348944 is 44984364947556.

It is a self number, because there is not a number n which added to its sum of digits gives 65574946348944.

It is not an unprimeable number, because it can be changed into a prime (65574946348949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397746564 + ... + 397911395.

It is an arithmetic number, because the mean of its divisors is an integer number (2264283422568).

Almost surely, 2^{65574946348944} is an apocalyptic number.

It is an amenable number.

65574946348944 is an abundant number, since it is smaller than the sum of its proper divisors (115567727456496).

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

65574946348944 is a wasteful number, since it uses less digits than its factorization.

65574946348944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795658088 (or 795658082 counting only the distinct ones).

The product of its digits is 12541132800, while the sum is 78.

The spelling of 65574946348944 in words is "sixty-five trillion, five hundred seventy-four billion, nine hundred forty-six million, three hundred forty-eight thousand, nine hundred forty-four".