648575361550 has 12 divisors (see below), whose sum is σ = 1206350172576. Its totient is φ = 259430144600.

The previous prime is 648575361547. The next prime is 648575361563. The reversal of 648575361550 is 55163575846.

It is a junction number, because it is equal to n+sod(n) for n = 648575361491 and 648575361500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6485753566 + ... + 6485753665.

It is an arithmetic number, because the mean of its divisors is an integer number (100529181048).

Almost surely, 2^648575361550 is an apocalyptic number.

648575361550 is a deficient number, since it is larger than the sum of its proper divisors (557774811026).

648575361550 is a wasteful number, since it uses less digits than its factorization.

648575361550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971507243 (or 12971507238 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 55.

The spelling of 648575361550 in words is "six hundred forty-eight billion, five hundred seventy-five million, three hundred sixty-one thousand, five hundred fifty".