64465321206508 has 12 divisors (see below), whose sum is σ = 113868651477672. Its totient is φ = 31931420784320.

The previous prime is 64465321206499. The next prime is 64465321206529. The reversal of 64465321206508 is 80560212356446.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75309954253 + ... + 75309955108.

It is an arithmetic number, because the mean of its divisors is an integer number (9489054289806).

Almost surely, 2^{64465321206508} is an apocalyptic number.

It is an amenable number.

64465321206508 is a deficient number, since it is larger than the sum of its proper divisors (49403330271164).

64465321206508 is a wasteful number, since it uses less digits than its factorization.

64465321206508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150619909472 (or 150619909470 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 64465321206508 in words is "sixty-four trillion, four hundred sixty-five billion, three hundred twenty-one million, two hundred six thousand, five hundred eight".