2115156446816 has 24 divisors (see below), whose sum is σ = 4759102005840. Its totient is φ = 906495619968.

The previous prime is 2115156446807. The next prime is 2115156446833. The reversal of 2115156446816 is 6186446515112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4721331131 + ... + 4721331578.

It is an arithmetic number, because the mean of its divisors is an integer number (198295916910).

Almost surely, 2^{2115156446816} is an apocalyptic number.

It is an amenable number.

2115156446816 is an abundant number, since it is smaller than the sum of its proper divisors (2643945559024).

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

2115156446816 is an equidigital number, since it uses as much as digits as its factorization.

2115156446816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9442662726 (or 9442662718 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The spelling of 2115156446816 in words is "two trillion, one hundred fifteen billion, one hundred fifty-six million, four hundred forty-six thousand, eight hundred sixteen".