2115396251155 has 16 divisors (see below), whose sum is σ = 2769756288768. Its totient is φ = 1538186508000.

The previous prime is 2115396251153. The next prime is 2115396251179. The reversal of 2115396251155 is 5511526935112.

It is not a de Polignac number, because 2115396251155 - 2¹ = 2115396251153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115396251153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3242241 + ... + 3839650.

It is an arithmetic number, because the mean of its divisors is an integer number (173109768048).

Almost surely, 2^{2115396251155} is an apocalyptic number.

2115396251155 is a deficient number, since it is larger than the sum of its proper divisors (654360037613).

2115396251155 is a wasteful number, since it uses less digits than its factorization.

2115396251155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7087338.

The product of its digits is 405000, while the sum is 46.

The spelling of 2115396251155 in words is "two trillion, one hundred fifteen billion, three hundred ninety-six million, two hundred fifty-one thousand, one hundred fifty-five".