65440145462065 has 32 divisors (see below), whose sum is σ = 87661265319936. Its totient is φ = 46485011348160.

The previous prime is 65440145462051. The next prime is 65440145462093. The reversal of 65440145462065 is 56026454104456.

It is not a de Polignac number, because 65440145462065 - 2⁵ = 65440145462033 is a prime.

It is a super-3 number, since 3×65440145462065³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118264872 + ... + 118816918.

It is an arithmetic number, because the mean of its divisors is an integer number (2739414541248).

Almost surely, 2^{65440145462065} is an apocalyptic number.

It is an amenable number.

65440145462065 is a deficient number, since it is larger than the sum of its proper divisors (22221119857871).

65440145462065 is a wasteful number, since it uses less digits than its factorization.

65440145462065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602229.

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 65440145462065 in words is "sixty-five trillion, four hundred forty billion, one hundred forty-five million, four hundred sixty-two thousand, sixty-five".