4016721438976 has 27 divisors (see below), whose sum is σ = 8017816568713. Its totient is φ = 2008344686080.

The previous prime is 4016721438943. The next prime is 4016721438979. The reversal of 4016721438976 is 6798341276104.

It is a happy number.

The square root of 4016721438976 is 2004176.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 96955013376 + 3919766425600 = 311376^2 + 1979840^2 .

It is a super-2 number, since 2×4016721438976² (a number of 26 digits) 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 4016721438976.

It is not an unprimeable number, because it can be changed into a prime (4016721438979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 32004186 + ... + 32129446.

Almost surely, 2^{4016721438976} is an apocalyptic number.

4016721438976 is the 2004176-th square number.

It is an amenable number.

4016721438976 is a deficient number, since it is larger than the sum of its proper divisors (4001095129737).

4016721438976 is an frugal number, since it uses more digits than its factorization.

4016721438976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250538 (or 125263 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 4016721438976 in words is "four trillion, sixteen billion, seven hundred twenty-one million, four hundred thirty-eight thousand, nine hundred seventy-six".