464144720065 has 16 divisors (see below), whose sum is σ = 599956777728. Its totient is φ = 342673603776.

The previous prime is 464144720029. The next prime is 464144720111. The reversal of 464144720065 is 560027441464.

It is a cyclic number.

It is not a de Polignac number, because 464144720065 - 2²⁷ = 464010502337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543877 + ... + 1106386.

It is an arithmetic number, because the mean of its divisors is an integer number (37497298608).

Almost surely, 2^464144720065 is an apocalyptic number.

It is an amenable number.

464144720065 is a deficient number, since it is larger than the sum of its proper divisors (135812057663).

464144720065 is a wasteful number, since it uses less digits than its factorization.

464144720065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654608.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 464144720065 in words is "four hundred sixty-four billion, one hundred forty-four million, seven hundred twenty thousand, sixty-five".