91669525435051 has 4 divisors (see below), whose sum is σ = 92276608385104. Its totient is φ = 91062442485000.

The previous prime is 91669525435039. The next prime is 91669525435063. The reversal of 91669525435051 is 15053452596619.

It is a happy number.

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 (91669525435039) and next prime (91669525435063).

It is a cyclic number.

It is not a de Polignac number, because 91669525435051 - 2¹³ = 91669525426859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91669525435151) 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, 303541474800 + ... + 303541475101.

It is an arithmetic number, because the mean of its divisors is an integer number (23069152096276).

Almost surely, 2^{91669525435051} is an apocalyptic number.

91669525435051 is a deficient number, since it is larger than the sum of its proper divisors (607082950053).

91669525435051 is a wasteful number, since it uses less digits than its factorization.

91669525435051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607082950052.

The product of its (nonzero) digits is 43740000, while the sum is 61.

The spelling of 91669525435051 in words is "ninety-one trillion, six hundred sixty-nine billion, five hundred twenty-five million, four hundred thirty-five thousand, fifty-one".