12115154353540 has 96 divisors (see below), whose sum is σ = 29162275430400. Its totient is φ = 4141498999680.

The previous prime is 12115154353537. The next prime is 12115154353571. The reversal of 12115154353540 is 4535345151121.

It is a junction number, because it is equal to n+sod(n) for n = 12115154353493 and 12115154353502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362810245 + ... + 362843635.

It is an arithmetic number, because the mean of its divisors is an integer number (303773702400).

Almost surely, 2^{12115154353540} is an apocalyptic number.

12115154353540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12115154353540 is an abundant number, since it is smaller than the sum of its proper divisors (17047121076860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12115154353540 is a wasteful number, since it uses less digits than its factorization.

12115154353540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40985 (or 40983 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 12115154353540 in words is "twelve trillion, one hundred fifteen billion, one hundred fifty-four million, three hundred fifty-three thousand, five hundred forty".