4005720059520 has 128 divisors (see below), whose sum is σ = 12958803743040. Its totient is φ = 1052248817664.

The previous prime is 4005720059519. The next prime is 4005720059527. The reversal of 4005720059520 is 259500275004.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (4005720059527) 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 15 ways as a sum of consecutive naturals, for example, 15440857 + ... + 15698136.

Almost surely, 2^{4005720059520} is an apocalyptic number.

4005720059520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4005720059520 is an abundant number, since it is smaller than the sum of its proper divisors (8953083683520).

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

4005720059520 is a wasteful number, since it uses less digits than its factorization.

4005720059520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31139082 (or 31139070 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 4005720059520 in words is "four trillion, five billion, seven hundred twenty million, fifty-nine thousand, five hundred twenty".