65623411316064 has 96 divisors (see below), whose sum is σ = 196906655102976. Its totient is φ = 18746077409280.

The previous prime is 65623411316041. The next prime is 65623411316129. The reversal of 65623411316064 is 46061311432656.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×65623411316064² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5396817 + ... + 12663824.

It is an arithmetic number, because the mean of its divisors is an integer number (2051110990656).

Almost surely, 2^{65623411316064} is an apocalyptic number.

It is an amenable number.

65623411316064 is an abundant number, since it is smaller than the sum of its proper divisors (131283243786912).

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

65623411316064 is a wasteful number, since it uses less digits than its factorization.

65623411316064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066068 (or 18066060 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 65623411316064 in words is "sixty-five trillion, six hundred twenty-three billion, four hundred eleven million, three hundred sixteen thousand, sixty-four".