1116212660 has 24 divisors (see below), whose sum is σ = 2419662336. Its totient is φ = 432082080.

The previous prime is 1116212641. The next prime is 1116212677. The reversal of 1116212660 is 662126111.

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, 899552 + ... + 900791.

It is an arithmetic number, because the mean of its divisors is an integer number (100819264).

Almost surely, 2^1116212660 is an apocalyptic number.

1116212660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116212660 is an abundant number, since it is smaller than the sum of its proper divisors (1303449676).

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

1116212660 is a wasteful number, since it uses less digits than its factorization.

1116212660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800383 (or 1800381 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1116212660 is about 33409.7689306586. The cubic root of 1116212660 is about 1037.3269186281.

Adding to 1116212660 its reverse (662126111), we get a palindrome (1778338771).

The spelling of 1116212660 in words is "one billion, one hundred sixteen million, two hundred twelve thousand, six hundred sixty".