1140245666 has 8 divisors (see below), whose sum is σ = 1954706880. Its totient is φ = 488676708.

The previous prime is 1140245647. The next prime is 1140245699. The reversal of 1140245666 is 6665420411.

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, 40723046 + ... + 40723073.

It is an arithmetic number, because the mean of its divisors is an integer number (244338360).

Almost surely, 2^1140245666 is an apocalyptic number.

1140245666 is a deficient number, since it is larger than the sum of its proper divisors (814461214).

1140245666 is an equidigital number, since it uses as much as digits as its factorization.

1140245666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81446128.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1140245666 is about 33767.5238357804. The cubic root of 1140245666 is about 1044.7189604664.

The spelling of 1140245666 in words is "one billion, one hundred forty million, two hundred forty-five thousand, six hundred sixty-six".