65144633644156 has 48 divisors (see below), whose sum is σ = 127413243917568. Its totient is φ = 28886053539200.

The previous prime is 65144633644151. The next prime is 65144633644169.

65144633644156 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65144633644156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65144633644151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16081521 + ... + 19720663.

It is an arithmetic number, because the mean of its divisors is an integer number (2654442581616).

Almost surely, 2^{65144633644156} is an apocalyptic number.

It is an amenable number.

65144633644156 is a deficient number, since it is larger than the sum of its proper divisors (62268610273412).

65144633644156 is a wasteful number, since it uses less digits than its factorization.

65144633644156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649122 (or 3649120 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 58.

The spelling of 65144633644156 in words is "sixty-five trillion, one hundred forty-four billion, six hundred thirty-three million, six hundred forty-four thousand, one hundred fifty-six".