2155056167167 has 4 divisors (see below), whose sum is σ = 2155651983936. Its totient is φ = 2154460350400.

The previous prime is 2155056167153. The next prime is 2155056167171. The reversal of 2155056167167 is 7617616505512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155056167167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155056167867) 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, 297902959 + ... + 297910192.

It is an arithmetic number, because the mean of its divisors is an integer number (538912995984).

Almost surely, 2^{2155056167167} is an apocalyptic number.

2155056167167 is a deficient number, since it is larger than the sum of its proper divisors (595816769).

2155056167167 is an equidigital number, since it uses as much as digits as its factorization.

2155056167167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595816768.

The product of its (nonzero) digits is 2646000, while the sum is 52.

The spelling of 2155056167167 in words is "two trillion, one hundred fifty-five billion, fifty-six million, one hundred sixty-seven thousand, one hundred sixty-seven".