65131646041145 has 16 divisors (see below), whose sum is σ = 80876921886720. Its totient is φ = 50293745476800.

The previous prime is 65131646041103. The next prime is 65131646041159. The reversal of 65131646041145 is 54114064613156.

It is a happy number.

It is not a de Polignac number, because 65131646041145 - 2⁶ = 65131646041081 is a prime.

It is a super-2 number, since 2×65131646041145² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65131646041145.

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, 65740061 + ... + 66723450.

It is an arithmetic number, because the mean of its divisors is an integer number (5054807617920).

Almost surely, 2^{65131646041145} is an apocalyptic number.

It is an amenable number.

65131646041145 is a deficient number, since it is larger than the sum of its proper divisors (15745275845575).

65131646041145 is a wasteful number, since it uses less digits than its factorization.

65131646041145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132466936.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 65131646041145 in words is "sixty-five trillion, one hundred thirty-one billion, six hundred forty-six million, forty-one thousand, one hundred forty-five".