4016721612 has 24 divisors (see below), whose sum is σ = 9426530736. Its totient is φ = 1331167168.

The previous prime is 4016721571. The next prime is 4016721629. The reversal of 4016721612 is 2161276104.

It is a super-2 number, since 2×4016721612² = 32268105016615757088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4016721612.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 965343 + ... + 969494.

It is an arithmetic number, because the mean of its divisors is an integer number (392772114).

Almost surely, 2^4016721612 is an apocalyptic number.

It is an amenable number.

4016721612 is an abundant number, since it is smaller than the sum of its proper divisors (5409809124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4016721612 is a wasteful number, since it uses less digits than its factorization.

4016721612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935017 (or 1935015 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4016721612 is about 63377.6112834809. The cubic root of 4016721612 is about 1589.6099688074.

Adding to 4016721612 its reverse (2161276104), we get a palindrome (6177997716).

The spelling of 4016721612 in words is "four billion, sixteen million, seven hundred twenty-one thousand, six hundred twelve".