720011601603 has 24 divisors (see below), whose sum is σ = 1188674043648. Its totient is φ = 411406309872.

The previous prime is 720011601601. The next prime is 720011601637. The reversal of 720011601603 is 306106110027.

It is not a de Polignac number, because 720011601603 - 2¹ = 720011601601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720011601601) 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 23 ways as a sum of consecutive naturals, for example, 519676 + ... + 1307702.

It is an arithmetic number, because the mean of its divisors is an integer number (49528085152).

Almost surely, 2^720011601603 is an apocalyptic number.

720011601603 is a deficient number, since it is larger than the sum of its proper divisors (468662442045).

720011601603 is a wasteful number, since it uses less digits than its factorization.

720011601603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802543 (or 802540 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The spelling of 720011601603 in words is "seven hundred twenty billion, eleven million, six hundred one thousand, six hundred three".