12153215555 has 16 divisors (see below), whose sum is σ = 15724092384. Its totient is φ = 8964168960.

The previous prime is 12153215549. The next prime is 12153215563. The reversal of 12153215555 is 55551235121.

It is not a de Polignac number, because 12153215555 - 2⁴ = 12153215539 is a prime.

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, 53381 + ... + 164790.

It is an arithmetic number, because the mean of its divisors is an integer number (982755774).

Almost surely, 2^12153215555 is an apocalyptic number.

12153215555 is a deficient number, since it is larger than the sum of its proper divisors (3570876829).

12153215555 is a wasteful number, since it uses less digits than its factorization.

12153215555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219046.

The product of its digits is 37500, while the sum is 35.

The spelling of 12153215555 in words is "twelve billion, one hundred fifty-three million, two hundred fifteen thousand, five hundred fifty-five".