2160515221667 has 4 divisors (see below), whose sum is σ = 2356925696376. Its totient is φ = 1964104746960.

The previous prime is 2160515221663. The next prime is 2160515221673. The reversal of 2160515221667 is 7661225150612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2160515221667 - 2² = 2160515221663 is a prime.

It is a super-2 number, since 2×2160515221667² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160515221661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98205237338 + ... + 98205237359.

It is an arithmetic number, because the mean of its divisors is an integer number (589231424094).

Almost surely, 2^{2160515221667} is an apocalyptic number.

2160515221667 is a deficient number, since it is larger than the sum of its proper divisors (196410474709).

2160515221667 is a wasteful number, since it uses less digits than its factorization.

2160515221667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196410474708.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 2160515221667 in words is "two trillion, one hundred sixty billion, five hundred fifteen million, two hundred twenty-one thousand, six hundred sixty-seven".