1016433685 has 4 divisors (see below), whose sum is σ = 1219720428. Its totient is φ = 813146944.

The previous prime is 1016433653. The next prime is 1016433727. The reversal of 1016433685 is 5863346101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5863346101 = 1039 ⋅5643259.

It can be written as a sum of positive squares in 2 ways, for example, as 682202161 + 334231524 = 26119^2 + 18282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016433685 - 2⁵ = 1016433653 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 101643364 + ... + 101643373.

It is an arithmetic number, because the mean of its divisors is an integer number (304930107).

Almost surely, 2^1016433685 is an apocalyptic number.

It is an amenable number.

1016433685 is a deficient number, since it is larger than the sum of its proper divisors (203286743).

1016433685 is an equidigital number, since it uses as much as digits as its factorization.

1016433685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203286742.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1016433685 is about 31881.5571294753. The cubic root of 1016433685 is about 1005.4481586623.

Adding to 1016433685 its reverse (5863346101), we get a palindrome (6879779786).

The spelling of 1016433685 in words is "one billion, sixteen million, four hundred thirty-three thousand, six hundred eighty-five".