1148981666 has 8 divisors (see below), whose sum is σ = 1969682880. Its totient is φ = 492420708.

The previous prime is 1148981651. The next prime is 1148981741. The reversal of 1148981666 is 6661898411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41035046 + ... + 41035073.

It is an arithmetic number, because the mean of its divisors is an integer number (246210360).

Almost surely, 2^1148981666 is an apocalyptic number.

1148981666 is a deficient number, since it is larger than the sum of its proper divisors (820701214).

1148981666 is an equidigital number, since it uses as much as digits as its factorization.

1148981666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82070128.

The product of its digits is 497664, while the sum is 50.

The square root of 1148981666 is about 33896.6320745882. The cubic root of 1148981666 is about 1047.3802160807.

The spelling of 1148981666 in words is "one billion, one hundred forty-eight million, nine hundred eighty-one thousand, six hundred sixty-six".