23013573665 has 8 divisors (see below), whose sum is σ = 27889717608. Its totient is φ = 18228572800.

The previous prime is 23013573613. The next prime is 23013573683. The reversal of 23013573665 is 56637531032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14901329041 + 8112244624 = 122071^2 + 90068^2 .

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

It is not a de Polignac number, because 23013573665 - 2¹² = 23013569569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22785212 + ... + 22786221.

It is an arithmetic number, because the mean of its divisors is an integer number (3486214701).

Almost surely, 2^23013573665 is an apocalyptic number.

It is an amenable number.

23013573665 is a deficient number, since it is larger than the sum of its proper divisors (4876143943).

23013573665 is a wasteful number, since it uses less digits than its factorization.

23013573665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45571539.

The product of its (nonzero) digits is 340200, while the sum is 41.

The spelling of 23013573665 in words is "twenty-three billion, thirteen million, five hundred seventy-three thousand, six hundred sixty-five".