1035998666 has 8 divisors (see below), whose sum is σ = 1645409700. Its totient is φ = 487528768.

The previous prime is 1035998659. The next prime is 1035998681. The reversal of 1035998666 is 6668995301.

It can be written as a sum of positive squares in 2 ways, for example, as 988788025 + 47210641 = 31445^2 + 6871^2 .

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

It is a super-3 number, since 3×1035998666³ (a number of 28 digits) contains 333 as substring.

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, 15235241 + ... + 15235308.

Almost surely, 2^1035998666 is an apocalyptic number.

1035998666 is a deficient number, since it is larger than the sum of its proper divisors (609411034).

1035998666 is a wasteful number, since it uses less digits than its factorization.

1035998666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470568.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 1035998666 is about 32186.9331561738. The cubic root of 1035998666 is about 1011.8583783500.

The spelling of 1035998666 in words is "one billion, thirty-five million, nine hundred ninety-eight thousand, six hundred sixty-six".