64405004145 has 16 divisors (see below), whose sum is σ = 103053529152. Its totient is φ = 34347494720.

The previous prime is 64405004123. The next prime is 64405004221. The reversal of 64405004145 is 54140050446.

It is not a de Polignac number, because 64405004145 - 2⁹ = 64405003633 is a prime.

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, 202435 + ... + 412055.

It is an arithmetic number, because the mean of its divisors is an integer number (6440845572).

Almost surely, 2^64405004145 is an apocalyptic number.

It is an amenable number.

64405004145 is a deficient number, since it is larger than the sum of its proper divisors (38648525007).

64405004145 is a wasteful number, since it uses less digits than its factorization.

64405004145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230112.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 64405004145 in words is "sixty-four billion, four hundred five million, four thousand, one hundred forty-five".