4016646021 has 8 divisors (see below), whose sum is σ = 5377751104. Its totient is φ = 2666652480.

The previous prime is 4016646019. The next prime is 4016646041. The reversal of 4016646021 is 1206466104.

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

It is not a de Polignac number, because 4016646021 - 2¹ = 4016646019 is a prime.

It is a super-2 number, since 2×4016646021² = 32266890516030264882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4016646021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4016646041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777041 + ... + 2778486.

It is an arithmetic number, because the mean of its divisors is an integer number (672218888).

Almost surely, 2^4016646021 is an apocalyptic number.

It is an amenable number.

4016646021 is a deficient number, since it is larger than the sum of its proper divisors (1361105083).

4016646021 is a wasteful number, since it uses less digits than its factorization.

4016646021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555771.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4016646021 is about 63377.0149265489. The cubic root of 4016646021 is about 1589.5999970799.

The spelling of 4016646021 in words is "four billion, sixteen million, six hundred forty-six thousand, twenty-one".