16158105599 has 4 divisors (see below), whose sum is σ = 16206921960. Its totient is φ = 16109289240.

The previous prime is 16158105581. The next prime is 16158105611. The reversal of 16158105599 is 99550185161.

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-16158105599 is a prime.

It is a super-2 number, since 2×16158105599² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16158105529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24407684 + ... + 24408345.

It is an arithmetic number, because the mean of its divisors is an integer number (4051730490).

Almost surely, 2^16158105599 is an apocalyptic number.

16158105599 is a deficient number, since it is larger than the sum of its proper divisors (48816361).

16158105599 is an equidigital number, since it uses as much as digits as its factorization.

16158105599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48816360.

The product of its (nonzero) digits is 486000, while the sum is 50.

The spelling of 16158105599 in words is "sixteen billion, one hundred fifty-eight million, one hundred five thousand, five hundred ninety-nine".