1115666260 has 24 divisors (see below), whose sum is σ = 2392750080. Its totient is φ = 436771104.

The previous prime is 1115666249. The next prime is 1115666273. The reversal of 1115666260 is 626665111.

It is a happy number.

It is a super-2 number, since 2×1115666260² = 2489422407404775200, 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, 592500 + ... + 594379.

It is an arithmetic number, because the mean of its divisors is an integer number (99697920).

Almost surely, 2^1115666260 is an apocalyptic number.

1115666260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115666260 is an abundant number, since it is smaller than the sum of its proper divisors (1277083820).

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

1115666260 is a wasteful number, since it uses less digits than its factorization.

1115666260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186935 (or 1186933 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1115666260 is about 33401.5906806847. The cubic root of 1115666260 is about 1037.1576295197.

The spelling of 1115666260 in words is "one billion, one hundred fifteen million, six hundred sixty-six thousand, two hundred sixty".