16587161105 has 16 divisors (see below), whose sum is σ = 20669405904. Its totient is φ = 12768721920.

The previous prime is 16587161093. The next prime is 16587161111. The reversal of 16587161105 is 50116178561.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6257284609 + 10329876496 = 79103^2 + 101636^2 .

It is not a de Polignac number, because 16587161105 - 2¹² = 16587157009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539234 + ... + 569163.

It is an arithmetic number, because the mean of its divisors is an integer number (1291837869).

Almost surely, 2^16587161105 is an apocalyptic number.

It is an amenable number.

16587161105 is a deficient number, since it is larger than the sum of its proper divisors (4082244799).

16587161105 is a wasteful number, since it uses less digits than its factorization.

16587161105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108516.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 16587161105 in words is "sixteen billion, five hundred eighty-seven million, one hundred sixty-one thousand, one hundred five".