5999111638 has 24 divisors (see below), whose sum is σ = 9867506400. Its totient is φ = 2733760224.

The previous prime is 5999111633. The next prime is 5999111639. The reversal of 5999111638 is 8361119995.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5999111633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85633 + ... + 139036.

It is an arithmetic number, because the mean of its divisors is an integer number (411146100).

Almost surely, 2^5999111638 is an apocalyptic number.

5999111638 is a deficient number, since it is larger than the sum of its proper divisors (3868394762).

5999111638 is a wasteful number, since it uses less digits than its factorization.

5999111638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224776 (or 224763 counting only the distinct ones).

The product of its digits is 524880, while the sum is 52.

The square root of 5999111638 is about 77453.9323598228. The cubic root of 5999111638 is about 1817.0309072455.

The spelling of 5999111638 in words is "five billion, nine hundred ninety-nine million, one hundred eleven thousand, six hundred thirty-eight".