15541312105 has 64 divisors (see below), whose sum is σ = 22079692800. Its totient is φ = 10380337920.

The previous prime is 15541312063. The next prime is 15541312133. The reversal of 15541312105 is 50121314551.

It is not a de Polignac number, because 15541312105 - 2¹⁹ = 15540787817 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 5352084 + ... + 5354986.

It is an arithmetic number, because the mean of its divisors is an integer number (344995200).

Almost surely, 2^15541312105 is an apocalyptic number.

It is an amenable number.

15541312105 is a deficient number, since it is larger than the sum of its proper divisors (6538380695).

15541312105 is a wasteful number, since it uses less digits than its factorization.

15541312105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 15541312105 its reverse (50121314551), we get a palindrome (65662626656).

The spelling of 15541312105 in words is "fifteen billion, five hundred forty-one million, three hundred twelve thousand, one hundred five".