11971960085 has 8 divisors (see below), whose sum is σ = 14672019456. Its totient is φ = 9373789840.

The previous prime is 11971960027. The next prime is 11971960123. The reversal of 11971960085 is 58006917911.

11971960085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11971960085 - 2¹⁰ = 11971959061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25472021 + ... + 25472490.

It is an arithmetic number, because the mean of its divisors is an integer number (1834002432).

Almost surely, 2^11971960085 is an apocalyptic number.

It is an amenable number.

11971960085 is a deficient number, since it is larger than the sum of its proper divisors (2700059371).

11971960085 is an equidigital number, since it uses as much as digits as its factorization.

11971960085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50944563.

The product of its (nonzero) digits is 136080, while the sum is 47.

The spelling of 11971960085 in words is "eleven billion, nine hundred seventy-one million, nine hundred sixty thousand, eighty-five".