23436456605 has 16 divisors (see below), whose sum is σ = 28183652784. Its totient is φ = 18709278720.

The previous prime is 23436456577. The next prime is 23436456643. The reversal of 23436456605 is 50665463432.

It can be written as a sum of positive squares in 8 ways, for example, as 437520889 + 22998935716 = 20917^2 + 151654^2 .

It is not a de Polignac number, because 23436456605 - 2⁶ = 23436456541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 5723939 + ... + 5728031.

It is an arithmetic number, because the mean of its divisors is an integer number (1761478299).

Almost surely, 2^23436456605 is an apocalyptic number.

It is an amenable number.

23436456605 is a deficient number, since it is larger than the sum of its proper divisors (4747196179).

23436456605 is a wasteful number, since it uses less digits than its factorization.

23436456605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 23436456605 in words is "twenty-three billion, four hundred thirty-six million, four hundred fifty-six thousand, six hundred five".