64204665416 has 16 divisors (see below), whose sum is σ = 125617824000. Its totient is φ = 30706579024.

The previous prime is 64204665403. The next prime is 64204665419. The reversal of 64204665416 is 61456640246.

It is a super-2 number, since 2×64204665416² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64204665419) by changing a digit.

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, 174469016 + ... + 174469383.

It is an arithmetic number, because the mean of its divisors is an integer number (7851114000).

Almost surely, 2^64204665416 is an apocalyptic number.

It is an amenable number.

64204665416 is a deficient number, since it is larger than the sum of its proper divisors (61413158584).

64204665416 is a wasteful number, since it uses less digits than its factorization.

64204665416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348938428 (or 348938424 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 64204665416 in words is "sixty-four billion, two hundred four million, six hundred sixty-five thousand, four hundred sixteen".