65571051146241 has 4 divisors (see below), whose sum is σ = 87428068194992. Its totient is φ = 43714034097492.

The previous prime is 65571051146231. The next prime is 65571051146297. The reversal of 65571051146241 is 14264115017556.

It is a happy number.

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 not a de Polignac number, because 65571051146241 - 2¹⁹ = 65571050621953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65571051146201) 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, 10928508524371 + ... + 10928508524376.

It is an arithmetic number, because the mean of its divisors is an integer number (21857017048748).

Almost surely, 2^{65571051146241} is an apocalyptic number.

It is an amenable number.

65571051146241 is a deficient number, since it is larger than the sum of its proper divisors (21857017048751).

65571051146241 is a wasteful number, since it uses less digits than its factorization.

65571051146241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21857017048750.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 65571051146241 in words is "sixty-five trillion, five hundred seventy-one billion, fifty-one million, one hundred forty-six thousand, two hundred forty-one".