64216204917116 has 96 divisors (see below), whose sum is σ = 132082493018112. Its totient is φ = 26741113217280.

The previous prime is 64216204917083. The next prime is 64216204917119. The reversal of 64216204917116 is 61171940261246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64216204917119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2475267641 + ... + 2475293583.

It is an arithmetic number, because the mean of its divisors is an integer number (1375859302272).

Almost surely, 2^{64216204917116} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64216204917116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66041246509056).

64216204917116 is an abundant number, since it is smaller than the sum of its proper divisors (67866288100996).

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

64216204917116 is a wasteful number, since it uses less digits than its factorization.

64216204917116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29139 (or 29137 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 64216204917116 in words is "sixty-four trillion, two hundred sixteen billion, two hundred four million, nine hundred seventeen thousand, one hundred sixteen".