91466659531811 has 2 divisors, whose sum is σ = 91466659531812. Its totient is φ = 91466659531810.

The previous prime is 91466659531739. The next prime is 91466659531823. The reversal of 91466659531811 is 11813595666419.

It is a strong prime.

It is an emirp because it is prime and its reverse (11813595666419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91466659531811 - 2²² = 91466655337507 is a prime.

It is a super-2 number, since 2×91466659531811² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91466659531831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45733329765905 + 45733329765906.

It is an arithmetic number, because the mean of its divisors is an integer number (45733329765906).

Almost surely, 2^{91466659531811} is an apocalyptic number.

91466659531811 is a deficient number, since it is larger than the sum of its proper divisors (1).

91466659531811 is an equidigital number, since it uses as much as digits as its factorization.

91466659531811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41990400, while the sum is 65.

The spelling of 91466659531811 in words is "ninety-one trillion, four hundred sixty-six billion, six hundred fifty-nine million, five hundred thirty-one thousand, eight hundred eleven".