6416606021 has 24 divisors (see below), whose sum is σ = 8041376256. Its totient is φ = 5009391360.

The previous prime is 6416606017. The next prime is 6416606069. The reversal of 6416606021 is 1206066146.

It is not a de Polignac number, because 6416606021 - 2² = 6416606017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416606011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11555 + ... + 113871.

It is an arithmetic number, because the mean of its divisors is an integer number (335057344).

Almost surely, 2^6416606021 is an apocalyptic number.

It is an amenable number.

6416606021 is a deficient number, since it is larger than the sum of its proper divisors (1624770235).

6416606021 is a wasteful number, since it uses less digits than its factorization.

6416606021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102389 (or 102372 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6416606021 is about 80103.7203942489. The cubic root of 6416606021 is about 1858.2399449612.

The spelling of 6416606021 in words is "six billion, four hundred sixteen million, six hundred six thousand, twenty-one".