23145222301605 has 40 divisors (see below), whose sum is σ = 41671133057400. Its totient is φ = 12290214063744.

The previous prime is 23145222301589. The next prime is 23145222301613. The reversal of 23145222301605 is 50610322254132.

23145222301605 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 5 + 22 + 23 + 0 + 1 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10815896295009 + 12329326006596 = 3288753^2 + 3511314^2 .

It is not a de Polignac number, because 23145222301605 - 2⁴ = 23145222301589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23145222301605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 124686070 + ... + 124871559.

It is an arithmetic number, because the mean of its divisors is an integer number (1041778326435).

Almost surely, 2^{23145222301605} is an apocalyptic number.

It is an amenable number.

23145222301605 is a deficient number, since it is larger than the sum of its proper divisors (18525910755795).

23145222301605 is a wasteful number, since it uses less digits than its factorization.

23145222301605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249557875 (or 249557866 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 23145222301605 its reverse (50610322254132), we get a palindrome (73755544555737).

The spelling of 23145222301605 in words is "twenty-three trillion, one hundred forty-five billion, two hundred twenty-two million, three hundred one thousand, six hundred five".