2155444154467 has 2 divisors, whose sum is σ = 2155444154468. Its totient is φ = 2155444154466.

The previous prime is 2155444154399. The next prime is 2155444154509. The reversal of 2155444154467 is 7644514445512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155444154467 - 2²⁷ = 2155309936739 is a prime.

It is not a weakly prime, because it can be changed into another prime (2155444154167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077722077233 + 1077722077234.

It is an arithmetic number, because the mean of its divisors is an integer number (1077722077234).

Almost surely, 2^{2155444154467} is an apocalyptic number.

2155444154467 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155444154467 is an equidigital number, since it uses as much as digits as its factorization.

2155444154467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752000, while the sum is 52.

Adding to 2155444154467 its reverse (7644514445512), we get a palindrome (9799958599979).

The spelling of 2155444154467 in words is "two trillion, one hundred fifty-five billion, four hundred forty-four million, one hundred fifty-four thousand, four hundred sixty-seven".