64365436205016 has 64 divisors (see below), whose sum is σ = 161584421724000. Its totient is φ = 21365704704000.

The previous prime is 64365436205011. The next prime is 64365436205093. The reversal of 64365436205016 is 61050263456346.

It is a self number, because there is not a number n which added to its sum of digits gives 64365436205016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64365436205011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488109460 + ... + 488241308.

Almost surely, 2^{64365436205016} is an apocalyptic number.

It is an amenable number.

64365436205016 is an abundant number, since it is smaller than the sum of its proper divisors (97218985518984).

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

64365436205016 is a wasteful number, since it uses less digits than its factorization.

64365436205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216500 (or 216496 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 64365436205016 in words is "sixty-four trillion, three hundred sixty-five billion, four hundred thirty-six million, two hundred five thousand, sixteen".