2215011668167 has 4 divisors (see below), whose sum is σ = 2217683576920. Its totient is φ = 2212339759416.

The previous prime is 2215011668131. The next prime is 2215011668183. The reversal of 2215011668167 is 7618661105122.

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 2215011668167 - 2¹⁹ = 2215011143879 is a prime.

It is a super-2 number, since 2×2215011668167² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215011648167) 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, 1335953133 + ... + 1335954790.

It is an arithmetic number, because the mean of its divisors is an integer number (554420894230).

Almost surely, 2^{2215011668167} is an apocalyptic number.

2215011668167 is a deficient number, since it is larger than the sum of its proper divisors (2671908753).

2215011668167 is an equidigital number, since it uses as much as digits as its factorization.

2215011668167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671908752.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 2215011668167 in words is "two trillion, two hundred fifteen billion, eleven million, six hundred sixty-eight thousand, one hundred sixty-seven".