16136615231 has 8 divisors (see below), whose sum is σ = 17619186000. Its totient is φ = 14656645440.

The previous prime is 16136615197. The next prime is 16136615249. The reversal of 16136615231 is 13251663161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16136615231 is a prime.

It is a super-2 number, since 2×16136615231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16136615191 and 16136615200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16136615291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637256 + ... + 662093.

It is an arithmetic number, because the mean of its divisors is an integer number (2202398250).

Almost surely, 2^16136615231 is an apocalyptic number.

16136615231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16136615231 is a deficient number, since it is larger than the sum of its proper divisors (1482570769).

16136615231 is a wasteful number, since it uses less digits than its factorization.

16136615231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300489.

The product of its digits is 19440, while the sum is 35.

The spelling of 16136615231 in words is "sixteen billion, one hundred thirty-six million, six hundred fifteen thousand, two hundred thirty-one".