1116663680 has 64 divisors (see below), whose sum is σ = 2912226480. Its totient is φ = 406056960.

The previous prime is 1116663673. The next prime is 1116663701. The reversal of 1116663680 is 863666111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1116663680² = 2493875548462284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72269 + ... + 86348.

Almost surely, 2^1116663680 is an apocalyptic number.

1116663680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116663680 is an abundant number, since it is smaller than the sum of its proper divisors (1795562800).

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

1116663680 is a wasteful number, since it uses less digits than its factorization.

1116663680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158647 (or 158635 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1116663680 is about 33416.5180711576. The cubic root of 1116663680 is about 1037.4666148835.

The spelling of 1116663680 in words is "one billion, one hundred sixteen million, six hundred sixty-three thousand, six hundred eighty".