23155010434665 has 48 divisors (see below), whose sum is σ = 41115090481920. Its totient is φ = 12047892860160.

The previous prime is 23155010434657. The next prime is 23155010434669. The reversal of 23155010434665 is 56643401055132.

It is a happy number.

23155010434665 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 501 + 0 + 43 + 46 + 65 = 666.

It is not a de Polignac number, because 23155010434665 - 2³ = 23155010434657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23155010434665.

It is not an unprimeable number, because it can be changed into a prime (23155010434669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125151696 + ... + 125336574.

It is an arithmetic number, because the mean of its divisors is an integer number (856564385040).

Almost surely, 2^{23155010434665} is an apocalyptic number.

It is an amenable number.

23155010434665 is a deficient number, since it is larger than the sum of its proper divisors (17960080047255).

23155010434665 is a wasteful number, since it uses less digits than its factorization.

23155010434665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252814 (or 252811 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

Adding to 23155010434665 its reverse (56643401055132), we get a palindrome (79798411489797).

The spelling of 23155010434665 in words is "twenty-three trillion, one hundred fifty-five billion, ten million, four hundred thirty-four thousand, six hundred sixty-five".