53723112665 has 16 divisors (see below), whose sum is σ = 65670685200. Its totient is φ = 42179665920.

The previous prime is 53723112643. The next prime is 53723112673. The reversal of 53723112665 is 56621132735.

It can be written as a sum of positive squares in 8 ways, for example, as 20606028304 + 33117084361 = 143548^2 + 181981^2 .

It is not a de Polignac number, because 53723112665 - 2¹⁰ = 53723111641 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, 59204 + ... + 333093.

It is an arithmetic number, because the mean of its divisors is an integer number (4104417825).

Almost surely, 2^53723112665 is an apocalyptic number.

It is an amenable number.

53723112665 is a deficient number, since it is larger than the sum of its proper divisors (11947572535).

53723112665 is a wasteful number, since it uses less digits than its factorization.

53723112665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392812.

The product of its digits is 226800, while the sum is 41.

The spelling of 53723112665 in words is "fifty-three billion, seven hundred twenty-three million, one hundred twelve thousand, six hundred sixty-five".