16501126411 has 32 divisors (see below), whose sum is σ = 21390842880. Its totient is φ = 12351292800.

The previous prime is 16501126391. The next prime is 16501126427. The reversal of 16501126411 is 11462110561.

It is not a de Polignac number, because 16501126411 - 2⁷ = 16501126283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16501126411.

It is not an unprimeable number, because it can be changed into a prime (16501126451) 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 31 ways as a sum of consecutive naturals, for example, 421146 + ... + 458656.

It is an arithmetic number, because the mean of its divisors is an integer number (668463840).

Almost surely, 2^16501126411 is an apocalyptic number.

16501126411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16501126411 is a deficient number, since it is larger than the sum of its proper divisors (4889716469).

16501126411 is a wasteful number, since it uses less digits than its factorization.

16501126411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37755.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 16501126411 its reverse (11462110561), we get a palindrome (27963236972).

The spelling of 16501126411 in words is "sixteen billion, five hundred one million, one hundred twenty-six thousand, four hundred eleven".