64485016045 has 4 divisors (see below), whose sum is σ = 77382019260. Its totient is φ = 51588012832.

The previous prime is 64485015977. The next prime is 64485016103. The reversal of 64485016045 is 54061058446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23210217801 + 41274798244 = 152349^2 + 203162^2 .

It is a cyclic number.

It is not a de Polignac number, because 64485016045 - 2²¹ = 64482918893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64485015992 and 64485016010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6448501600 + ... + 6448501609.

It is an arithmetic number, because the mean of its divisors is an integer number (19345504815).

Almost surely, 2^64485016045 is an apocalyptic number.

It is an amenable number.

64485016045 is a deficient number, since it is larger than the sum of its proper divisors (12897003215).

64485016045 is a wasteful number, since it uses less digits than its factorization.

64485016045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12897003214.

The product of its (nonzero) digits is 460800, while the sum is 43.

It can be divided in two parts, 6448501 and 6045, that added together give a palindrome (6454546).

The spelling of 64485016045 in words is "sixty-four billion, four hundred eighty-five million, sixteen thousand, forty-five".