64716443514 has 48 divisors (see below), whose sum is σ = 147861511200. Its totient is φ = 20400411168.

The previous prime is 64716443509. The next prime is 64716443527. The reversal of 64716443514 is 41534461746.

64716443514 is a `hidden beast` number, since 6 + 4 + 71 + 64 + 4 + 3 + 514 = 666.

It is a super-2 number, since 2×64716443514² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64716443514.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24492 + ... + 360600.

It is an arithmetic number, because the mean of its divisors is an integer number (3080448150).

Almost surely, 2^64716443514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64716443514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73930755600).

64716443514 is an abundant number, since it is smaller than the sum of its proper divisors (83145067686).

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

64716443514 is a wasteful number, since it uses less digits than its factorization.

64716443514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336699 (or 336696 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 64716443514 in words is "sixty-four billion, seven hundred sixteen million, four hundred forty-three thousand, five hundred fourteen".