65442553403616 has 48 divisors (see below), whose sum is σ = 190874114096400. Its totient is φ = 21814184467584.

The previous prime is 65442553403593. The next prime is 65442553403651. The reversal of 65442553403616 is 61630435524456.

65442553403616 is a `hidden beast` number, since 6 + 5 + 4 + 4 + 2 + 553 + 40 + 36 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37871847171 + ... + 37871848898.

It is an arithmetic number, because the mean of its divisors is an integer number (3976544043675).

Almost surely, 2^{65442553403616} is an apocalyptic number.

It is an amenable number.

65442553403616 is an abundant number, since it is smaller than the sum of its proper divisors (125431560692784).

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

65442553403616 is a wasteful number, since it uses less digits than its factorization.

65442553403616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75743696088 (or 75743696074 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 65442553403616 in words is "sixty-five trillion, four hundred forty-two billion, five hundred fifty-three million, four hundred three thousand, six hundred sixteen".