1180181616 has 40 divisors (see below), whose sum is σ = 3228146064. Its totient is φ = 370252800.

The previous prime is 1180181591. The next prime is 1180181647. The reversal of 1180181616 is 6161810811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722335 + ... + 723966.

Almost surely, 2^1180181616 is an apocalyptic number.

1180181616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1180181616 is an abundant number, since it is smaller than the sum of its proper divisors (2047964448).

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

1180181616 is a wasteful number, since it uses less digits than its factorization.

1180181616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446329 (or 1446323 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 1180181616 is about 34353.7714960090. The cubic root of 1180181616 is about 1056.7760164853.

The spelling of 1180181616 in words is "one billion, one hundred eighty million, one hundred eighty-one thousand, six hundred sixteen".