16126731643 has 8 divisors (see below), whose sum is σ = 17602193520. Its totient is φ = 14652835680.

The previous prime is 16126731637. The next prime is 16126731671. The reversal of 16126731643 is 34613762161.

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

It is a cyclic number.

It is not a de Polignac number, because 16126731643 - 2¹³ = 16126723451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16126731596 and 16126731605.

It is not an unprimeable number, because it can be changed into a prime (16126731613) 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, 369888 + ... + 411181.

It is an arithmetic number, because the mean of its divisors is an integer number (2200274190).

Almost surely, 2^16126731643 is an apocalyptic number.

16126731643 is a deficient number, since it is larger than the sum of its proper divisors (1475461877).

16126731643 is a wasteful number, since it uses less digits than its factorization.

16126731643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782957.

The product of its digits is 108864, while the sum is 40.

The spelling of 16126731643 in words is "sixteen billion, one hundred twenty-six million, seven hundred thirty-one thousand, six hundred forty-three".