2161315067215 has 8 divisors (see below), whose sum is σ = 2598319542960. Its totient is φ = 1725891078912.

The previous prime is 2161315067147. The next prime is 2161315067237. The reversal of 2161315067215 is 5127605131612.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2161315067215 is a prime.

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, 395118850 + ... + 395124319.

It is an arithmetic number, because the mean of its divisors is an integer number (324789942870).

Almost surely, 2^{2161315067215} is an apocalyptic number.

2161315067215 is a deficient number, since it is larger than the sum of its proper divisors (437004475745).

2161315067215 is an equidigital number, since it uses as much as digits as its factorization.

2161315067215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790243721.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 2161315067215 in words is "two trillion, one hundred sixty-one billion, three hundred fifteen million, sixty-seven thousand, two hundred fifteen".