65776967460 has 384 divisors, whose sum is σ = 225078497280. Its totient is φ = 15875481600.

The previous prime is 65776967447. The next prime is 65776967467. The reversal of 65776967460 is 6476967756.

65776967460 is a `hidden beast` number, since 6 + 57 + 7 + 69 + 67 + 460 = 666.

It is not an unprimeable number, because it can be changed into a prime (65776967467) 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 127 ways as a sum of consecutive naturals, for example, 51508342 + ... + 51509618.

It is an arithmetic number, because the mean of its divisors is an integer number (586141920).

Almost surely, 2^65776967460 is an apocalyptic number.

65776967460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65776967460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112539248640).

65776967460 is an abundant number, since it is smaller than the sum of its proper divisors (159301529820).

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

65776967460 is a wasteful number, since it uses less digits than its factorization.

65776967460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 80015040, while the sum is 63.

The spelling of 65776967460 in words is "sixty-five billion, seven hundred seventy-six million, nine hundred sixty-seven thousand, four hundred sixty".