1148091660 has 36 divisors (see below), whose sum is σ = 3482545248. Its totient is φ = 306157728.

The previous prime is 1148091649. The next prime is 1148091683. The reversal of 1148091660 is 661908411.

It is a happy number.

1148091660 is a `hidden beast` number, since 11 + 480 + 9 + 166 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1148091660² = 2636228919523111200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3188964 + ... + 3189323.

It is an arithmetic number, because the mean of its divisors is an integer number (96737368).

Almost surely, 2^1148091660 is an apocalyptic number.

1148091660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148091660 is an abundant number, since it is smaller than the sum of its proper divisors (2334453588).

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

1148091660 is a wasteful number, since it uses less digits than its factorization.

1148091660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378302 (or 6378297 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1148091660 is about 33883.5012948780. The cubic root of 1148091660 is about 1047.1097111931.

The spelling of 1148091660 in words is "one billion, one hundred forty-eight million, ninety-one thousand, six hundred sixty".