1065216998 has 8 divisors (see below), whose sum is σ = 1598353680. Its totient is φ = 532432440.

The previous prime is 1065216973. The next prime is 1065217019. The reversal of 1065216998 is 8996125601.

It is a happy number.

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

It is a super-2 number, since 2×1065216998² = 2269374505656264008, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80333 + ... + 92648.

It is an arithmetic number, because the mean of its divisors is an integer number (199794210).

Almost surely, 2^1065216998 is an apocalyptic number.

1065216998 is a deficient number, since it is larger than the sum of its proper divisors (533136682).

1065216998 is a wasteful number, since it uses less digits than its factorization.

1065216998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176062.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 1065216998 is about 32637.6622630972. The cubic root of 1065216998 is about 1021.2828271862.

The spelling of 1065216998 in words is "one billion, sixty-five million, two hundred sixteen thousand, nine hundred ninety-eight".