1188164131620 has 24 divisors (see below), whose sum is σ = 3326859568704. Its totient is φ = 316843768416.

The previous prime is 1188164131591. The next prime is 1188164131657. The reversal of 1188164131620 is 261314618811.

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, 9901367704 + ... + 9901367823.

It is an arithmetic number, because the mean of its divisors is an integer number (138619148696).

Almost surely, 2^{1188164131620} is an apocalyptic number.

1188164131620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1188164131620 is an abundant number, since it is smaller than the sum of its proper divisors (2138695437084).

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

1188164131620 is a wasteful number, since it uses less digits than its factorization.

1188164131620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802735539 (or 19802735537 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 1188164131620 in words is "one trillion, one hundred eighty-eight billion, one hundred sixty-four million, one hundred thirty-one thousand, six hundred twenty".