11720081885 has 8 divisors (see below), whose sum is σ = 14804314080. Its totient is φ = 8882588304.

The previous prime is 11720081873. The next prime is 11720081941. The reversal of 11720081885 is 58818002711.

11720081885 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 a cyclic number.

It is not a de Polignac number, because 11720081885 - 2⁴ = 11720081869 is a prime.

It is a super-2 number, since 2×11720081885² (a number of 21 digits) contains 22 as substring.

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, 61684547 + ... + 61684736.

It is an arithmetic number, because the mean of its divisors is an integer number (1850539260).

Almost surely, 2^11720081885 is an apocalyptic number.

It is an amenable number.

11720081885 is a deficient number, since it is larger than the sum of its proper divisors (3084232195).

11720081885 is a wasteful number, since it uses less digits than its factorization.

11720081885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123369307.

The product of its (nonzero) digits is 35840, while the sum is 41.

The spelling of 11720081885 in words is "eleven billion, seven hundred twenty million, eighty-one thousand, eight hundred eighty-five".