65144440164201 has 16 divisors (see below), whose sum is σ = 87080378124096. Its totient is φ = 43319111786496.

The previous prime is 65144440164191. The next prime is 65144440164263. The reversal of 65144440164201 is 10246104444156.

It is not a de Polignac number, because 65144440164201 - 2¹⁷ = 65144440033129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65144440168201) 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, 398040 + ... + 11421353.

It is an arithmetic number, because the mean of its divisors is an integer number (5442523632756).

Almost surely, 2^{65144440164201} is an apocalyptic number.

It is an amenable number.

65144440164201 is a deficient number, since it is larger than the sum of its proper divisors (21935937959895).

65144440164201 is a wasteful number, since it uses less digits than its factorization.

65144440164201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824072.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 65144440164201 in words is "sixty-five trillion, one hundred forty-four billion, four hundred forty million, one hundred sixty-four thousand, two hundred one".