11512523426155 has 16 divisors (see below), whose sum is σ = 14097648180384. Its totient is φ = 9022147563520.

The previous prime is 11512523426021. The next prime is 11512523426161. The reversal of 11512523426155 is 55162432521511.

It is not a de Polignac number, because 11512523426155 - 2¹³ = 11512523417963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33717409 + ... + 34057138.

It is an arithmetic number, because the mean of its divisors is an integer number (881103011274).

Almost surely, 2^{11512523426155} is an apocalyptic number.

11512523426155 is a deficient number, since it is larger than the sum of its proper divisors (2585124754229).

11512523426155 is an equidigital number, since it uses as much as digits as its factorization.

11512523426155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67775246.

The product of its digits is 360000, while the sum is 43.

Adding to 11512523426155 its reverse (55162432521511), we get a palindrome (66674955947666).

The spelling of 11512523426155 in words is "eleven trillion, five hundred twelve billion, five hundred twenty-three million, four hundred twenty-six thousand, one hundred fifty-five".