65442261276401 has 4 divisors (see below), whose sum is σ = 65551513800000. Its totient is φ = 65333008752804.

The previous prime is 65442261276391. The next prime is 65442261276449. The reversal of 65442261276401 is 10467216224456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65442261276401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65442261276401.

It is not an unprimeable number, because it can be changed into a prime (65442261279401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54626260901 + ... + 54626262098.

It is an arithmetic number, because the mean of its divisors is an integer number (16387878450000).

Almost surely, 2^{65442261276401} is an apocalyptic number.

It is an amenable number.

65442261276401 is a deficient number, since it is larger than the sum of its proper divisors (109252523599).

65442261276401 is a wasteful number, since it uses less digits than its factorization.

65442261276401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109252523598.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 65442261276401 in words is "sixty-five trillion, four hundred forty-two billion, two hundred sixty-one million, two hundred seventy-six thousand, four hundred one".