91662201463 has 4 divisors (see below), whose sum is σ = 104756801680. Its totient is φ = 78567601248.

The previous prime is 91662201457. The next prime is 91662201469. The reversal of 91662201463 is 36410226619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36410226619 = 13 ⋅2800786663.

It is an interprime number because it is at equal distance from previous prime (91662201457) and next prime (91662201469).

It is a cyclic number.

It is not a de Polignac number, because 91662201463 - 2²¹ = 91660104311 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 (91662201469) 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 in 3 ways as a sum of consecutive naturals, for example, 6547300098 + ... + 6547300111.

It is an arithmetic number, because the mean of its divisors is an integer number (26189200420).

Almost surely, 2^91662201463 is an apocalyptic number.

91662201463 is a deficient number, since it is larger than the sum of its proper divisors (13094600217).

91662201463 is a wasteful number, since it uses less digits than its factorization.

91662201463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13094600216.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 91662201463 in words is "ninety-one billion, six hundred sixty-two million, two hundred one thousand, four hundred sixty-three".