15601004099 has 4 divisors (see below), whose sum is σ = 15601389936. Its totient is φ = 15600618264.

The previous prime is 15601004039. The next prime is 15601004113. The reversal of 15601004099 is 99040010651.

15601004099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15601004099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15601004039) 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 3 ways as a sum of consecutive naturals, for example, 124079 + ... + 215864.

It is an arithmetic number, because the mean of its divisors is an integer number (3900347484).

Almost surely, 2^15601004099 is an apocalyptic number.

15601004099 is a deficient number, since it is larger than the sum of its proper divisors (385837).

15601004099 is an equidigital number, since it uses as much as digits as its factorization.

15601004099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385836.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 15601004099 in words is "fifteen billion, six hundred one million, four thousand, ninety-nine".