11885333317820 has 24 divisors (see below), whose sum is σ = 24971501284800. Its totient is φ = 4751790219072.

The previous prime is 11885333317807. The next prime is 11885333317831. The reversal of 11885333317820 is 2871333358811.

It is a super-2 number, since 2×11885333317820² (a number of 27 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146402660 + ... + 146483819.

It is an arithmetic number, because the mean of its divisors is an integer number (1040479220200).

Almost surely, 2^{11885333317820} is an apocalyptic number.

11885333317820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11885333317820 is an abundant number, since it is smaller than the sum of its proper divisors (13086167966980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11885333317820 is a wasteful number, since it uses less digits than its factorization.

11885333317820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292888517 (or 292888515 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 11885333317820 in words is "eleven trillion, eight hundred eighty-five billion, three hundred thirty-three million, three hundred seventeen thousand, eight hundred twenty".