65380650144 has 24 divisors (see below), whose sum is σ = 171624206880. Its totient is φ = 21793550016.

The previous prime is 65380650143. The next prime is 65380650173. The reversal of 65380650144 is 44105608356.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 65380650096 and 65380650105.

It is not an unprimeable number, because it can be changed into a prime (65380650143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340524124 + ... + 340524315.

It is an arithmetic number, because the mean of its divisors is an integer number (7151008620).

Almost surely, 2^65380650144 is an apocalyptic number.

It is an amenable number.

65380650144 is an abundant number, since it is smaller than the sum of its proper divisors (106243556736).

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

65380650144 is a wasteful number, since it uses less digits than its factorization.

65380650144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681048452 (or 681048444 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 65380650144 in words is "sixty-five billion, three hundred eighty million, six hundred fifty thousand, one hundred forty-four".