12155751518 has 8 divisors (see below), whose sum is σ = 18234586512. Its totient is φ = 6077556016.

The previous prime is 12155751511. The next prime is 12155751529. The reversal of 12155751518 is 81515755121.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155751511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109130 + ... + 190317.

It is an arithmetic number, because the mean of its divisors is an integer number (2279323314).

Almost surely, 2^12155751518 is an apocalyptic number.

12155751518 is a deficient number, since it is larger than the sum of its proper divisors (6078834994).

12155751518 is a wasteful number, since it uses less digits than its factorization.

12155751518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319746.

The product of its digits is 70000, while the sum is 41.

The spelling of 12155751518 in words is "twelve billion, one hundred fifty-five million, seven hundred fifty-one thousand, five hundred eighteen".