4005055221788 has 24 divisors (see below), whose sum is σ = 7198691306352. Its totient is φ = 1948292538624.

The previous prime is 4005055221787. The next prime is 4005055221799. The reversal of 4005055221788 is 8871225505004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005055221787) 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, 1813556 + ... + 3361412.

It is an arithmetic number, because the mean of its divisors is an integer number (299945471098).

Almost surely, 2^{4005055221788} is an apocalyptic number.

It is an amenable number.

4005055221788 is a deficient number, since it is larger than the sum of its proper divisors (3193636084564).

4005055221788 is a wasteful number, since it uses less digits than its factorization.

4005055221788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565381 (or 1565379 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 47.

The spelling of 4005055221788 in words is "four trillion, five billion, fifty-five million, two hundred twenty-one thousand, seven hundred eighty-eight".