65613144244050 has 144 divisors (see below), whose sum is σ = 191206460128320. Its totient is φ = 16034733889920.

The previous prime is 65613144244031. The next prime is 65613144244051. The reversal of 65613144244050 is 5044244131656.

65613144244050 is a `hidden beast` number, since 6 + 5 + 6 + 13 + 144 + 2 + 440 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 65613144243987 and 65613144244005.

It is not an unprimeable number, because it can be changed into a prime (65613144244051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 39531894 + ... + 41158193.

It is an arithmetic number, because the mean of its divisors is an integer number (1327822639780).

Almost surely, 2^{65613144244050} is an apocalyptic number.

65613144244050 is an abundant number, since it is smaller than the sum of its proper divisors (125593315884270).

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

65613144244050 is a wasteful number, since it uses less digits than its factorization.

65613144244050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80690257 (or 80690249 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 65613144244050 in words is "sixty-five trillion, six hundred thirteen billion, one hundred forty-four million, two hundred forty-four thousand, fifty".