23540350155 has 64 divisors (see below), whose sum is σ = 45064470528. Its totient is φ = 10259568000.

The previous prime is 23540350151. The next prime is 23540350193. The reversal of 23540350155 is 55105304532.

It is a happy number.

It is not a de Polignac number, because 23540350155 - 2² = 23540350151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23540350151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 725530 + ... + 757280.

It is an arithmetic number, because the mean of its divisors is an integer number (704132352).

Almost surely, 2^23540350155 is an apocalyptic number.

23540350155 is a deficient number, since it is larger than the sum of its proper divisors (21524120373).

23540350155 is a wasteful number, since it uses less digits than its factorization.

23540350155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32096.

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 23540350155 its reverse (55105304532), we get a palindrome (78645654687).

The spelling of 23540350155 in words is "twenty-three billion, five hundred forty million, three hundred fifty thousand, one hundred fifty-five".