90909155167 has 2 divisors, whose sum is σ = 90909155168. Its totient is φ = 90909155166.

The previous prime is 90909155123. The next prime is 90909155173. The reversal of 90909155167 is 76155190909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90909155167 - 2⁷ = 90909155039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90909152167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45454577583 + 45454577584.

It is an arithmetic number, because the mean of its divisors is an integer number (45454577584).

Almost surely, 2^90909155167 is an apocalyptic number.

90909155167 is a deficient number, since it is larger than the sum of its proper divisors (1).

90909155167 is an equidigital number, since it uses as much as digits as its factorization.

90909155167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 52.

The spelling of 90909155167 in words is "ninety billion, nine hundred nine million, one hundred fifty-five thousand, one hundred sixty-seven".