65004144164 has 6 divisors (see below), whose sum is σ = 113757252294. Its totient is φ = 32502072080.

The previous prime is 65004144109. The next prime is 65004144167. The reversal of 65004144164 is 46144140056.

It can be written as a sum of positive squares in only one way, i.e., 64004952064 + 999192100 = 252992^2 + 31610^2 .

It is not an unprimeable number, because it can be changed into a prime (65004144167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8125518017 + ... + 8125518024.

It is an arithmetic number, because the mean of its divisors is an integer number (18959542049).

Almost surely, 2^65004144164 is an apocalyptic number.

It is an amenable number.

65004144164 is a deficient number, since it is larger than the sum of its proper divisors (48753108130).

65004144164 is a wasteful number, since it uses less digits than its factorization.

65004144164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16251036045 (or 16251036043 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 65004144164 in words is "sixty-five billion, four million, one hundred forty-four thousand, one hundred sixty-four".