4128016685 has 16 divisors (see below), whose sum is σ = 5336222976. Its totient is φ = 3047492928.

The previous prime is 4128016679. The next prime is 4128016693. The reversal of 4128016685 is 5866108214.

It is a cyclic number.

It is not a de Polignac number, because 4128016685 - 2¹² = 4128012589 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 15 ways as a sum of consecutive naturals, for example, 288572 + ... + 302538.

It is an arithmetic number, because the mean of its divisors is an integer number (333513936).

Almost surely, 2^4128016685 is an apocalyptic number.

It is an amenable number.

4128016685 is a deficient number, since it is larger than the sum of its proper divisors (1208206291).

4128016685 is a wasteful number, since it uses less digits than its factorization.

4128016685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 4128016685 is about 64249.6434620458. The cubic root of 4128016685 is about 1604.1580241044.

The spelling of 4128016685 in words is "four billion, one hundred twenty-eight million, sixteen thousand, six hundred eighty-five".