65764226380608 has 252 divisors, whose sum is σ = 221537596994532. Its totient is φ = 18596069130240.

The previous prime is 65764226380591. The next prime is 65764226380651. The reversal of 65764226380608 is 80608362246756.

It is a happy number.

65764226380608 is a `hidden beast` number, since 6 + 5 + 76 + 422 + 6 + 3 + 80 + 60 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52152199835904 + 13612026544704 = 7221648^2 + 3689448^2 .

It is a tau number, because it is divible by the number of its divisors (252).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9273003 + ... + 14748458.

It is an arithmetic number, because the mean of its divisors is an integer number (879117448391).

Almost surely, 2^{65764226380608} is an apocalyptic number.

It is an amenable number.

65764226380608 is an abundant number, since it is smaller than the sum of its proper divisors (155773370613924).

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

65764226380608 is a wasteful number, since it uses less digits than its factorization.

65764226380608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24021590 (or 24021570 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 65764226380608 in words is "sixty-five trillion, seven hundred sixty-four billion, two hundred twenty-six million, three hundred eighty thousand, six hundred eight".