64805116662 has 384 divisors, whose sum is σ = 182702822400. Its totient is φ = 16779571200.

The previous prime is 64805116639. The next prime is 64805116667. The reversal of 64805116662 is 26661150846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64805116667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 158447514 + ... + 158447922.

It is an arithmetic number, because the mean of its divisors is an integer number (475788600).

Almost surely, 2^64805116662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64805116662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91351411200).

64805116662 is an abundant number, since it is smaller than the sum of its proper divisors (117897705738).

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

64805116662 is a wasteful number, since it uses less digits than its factorization.

64805116662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 64805116662 in words is "sixty-four billion, eight hundred five million, one hundred sixteen thousand, six hundred sixty-two".