23405554365 has 8 divisors (see below), whose sum is σ = 37448887008. Its totient is φ = 12482962320.

The previous prime is 23405554351. The next prime is 23405554397. The reversal of 23405554365 is 56345550432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23405554365 - 2¹⁰ = 23405553341 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780185131 + ... + 780185160.

It is an arithmetic number, because the mean of its divisors is an integer number (4681110876).

Almost surely, 2^23405554365 is an apocalyptic number.

It is an amenable number.

23405554365 is a deficient number, since it is larger than the sum of its proper divisors (14043332643).

23405554365 is a wasteful number, since it uses less digits than its factorization.

23405554365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560370299.

The product of its (nonzero) digits is 1080000, while the sum is 42.

It can be divided in two parts, 234055 and 54365, that added together give a triangular number (288420 = T₇₅₉).

The spelling of 23405554365 in words is "twenty-three billion, four hundred five million, five hundred fifty-four thousand, three hundred sixty-five".