5000001218655 has 32 divisors (see below), whose sum is σ = 8152882813440. Its totient is φ = 2615730948480.

The previous prime is 5000001218651. The next prime is 5000001218657. The reversal of 5000001218655 is 5568121000005.

It is not a de Polignac number, because 5000001218655 - 2² = 5000001218651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5000001218651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2608750 + ... + 4099460.

It is an arithmetic number, because the mean of its divisors is an integer number (254777587920).

Almost surely, 2^{5000001218655} is an apocalyptic number.

5000001218655 is a deficient number, since it is larger than the sum of its proper divisors (3152881594785).

5000001218655 is a wasteful number, since it uses less digits than its factorization.

5000001218655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494991.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 5000001218655 in words is "five trillion, one million, two hundred eighteen thousand, six hundred fifty-five".