2160861780215 has 8 divisors (see below), whose sum is σ = 2593768104288. Its totient is φ = 1728200112160.

The previous prime is 2160861780197. The next prime is 2160861780221. The reversal of 2160861780215 is 5120871680612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2160861780215 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2160861780215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61144571 + ... + 61179900.

It is an arithmetic number, because the mean of its divisors is an integer number (324221013036).

Almost surely, 2^{2160861780215} is an apocalyptic number.

2160861780215 is a deficient number, since it is larger than the sum of its proper divisors (432906324073).

2160861780215 is a wasteful number, since it uses less digits than its factorization.

2160861780215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122328009.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 2160861780215 in words is "two trillion, one hundred sixty billion, eight hundred sixty-one million, seven hundred eighty thousand, two hundred fifteen".