16531126205 has 8 divisors (see below), whose sum is σ = 21640747104. Its totient is φ = 12022637200.

The previous prime is 16531126189. The next prime is 16531126229. The reversal of 16531126205 is 50262113561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16531126205 - 2⁴ = 16531126189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150282911 + ... + 150283020.

It is an arithmetic number, because the mean of its divisors is an integer number (2705093388).

Almost surely, 2^16531126205 is an apocalyptic number.

It is an amenable number.

16531126205 is a deficient number, since it is larger than the sum of its proper divisors (5109620899).

16531126205 is a wasteful number, since it uses less digits than its factorization.

16531126205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300565947.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 16531126205 its reverse (50262113561), we get a palindrome (66793239766).

The spelling of 16531126205 in words is "sixteen billion, five hundred thirty-one million, one hundred twenty-six thousand, two hundred five".