91001466009149 has 2 divisors, whose sum is σ = 91001466009150. Its totient is φ = 91001466009148.

The previous prime is 91001466009137. The next prime is 91001466009161. The reversal of 91001466009149 is 94190066410019.

It is a balanced prime because it is at equal distance from previous prime (91001466009137) and next prime (91001466009161).

It can be written as a sum of positive squares in only one way, i.e., 73722521337124 + 17278944672025 = 8586182^2 + 4156795^2 .

It is an emirp because it is prime and its reverse (94190066410019) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91001466009149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91001466009097 and 91001466009106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91001466009199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45500733004574 + 45500733004575.

It is an arithmetic number, because the mean of its divisors is an integer number (45500733004575).

Almost surely, 2^{91001466009149} is an apocalyptic number.

It is an amenable number.

91001466009149 is a deficient number, since it is larger than the sum of its proper divisors (1).

91001466009149 is an equidigital number, since it uses as much as digits as its factorization.

91001466009149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 91001466009149 in words is "ninety-one trillion, one billion, four hundred sixty-six million, nine thousand, one hundred forty-nine".