91522613260201 has 4 divisors (see below), whose sum is σ = 96906296393172. Its totient is φ = 86138930127232.

The previous prime is 91522613260189. The next prime is 91522613260213. The reversal of 91522613260201 is 10206231622519.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (91522613260189) and next prime (91522613260213).

It can be written as a sum of positive squares in 2 ways, for example, as 84242200506025 + 7280412754176 = 9178355^2 + 2698224^2 .

It is a cyclic number.

It is not a de Polignac number, because 91522613260201 - 2¹⁵ = 91522613227433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91522613260261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691841566460 + ... + 2691841566493.

It is an arithmetic number, because the mean of its divisors is an integer number (24226574098293).

Almost surely, 2^{91522613260201} is an apocalyptic number.

It is an amenable number.

91522613260201 is a deficient number, since it is larger than the sum of its proper divisors (5383683132971).

91522613260201 is a wasteful number, since it uses less digits than its factorization.

91522613260201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383683132970.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 91522613260201 in words is "ninety-one trillion, five hundred twenty-two billion, six hundred thirteen million, two hundred sixty thousand, two hundred one".