15540251041 has 16 divisors (see below), whose sum is σ = 18242509824. Its totient is φ = 12960907344.

The previous prime is 15540251039. The next prime is 15540251053. The reversal of 15540251041 is 14015204551.

15540251041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15540251041 - 2¹ = 15540251039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15540221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18991 + ... + 177316.

It is an arithmetic number, because the mean of its divisors is an integer number (1140156864).

Almost surely, 2^15540251041 is an apocalyptic number.

It is an amenable number.

15540251041 is a deficient number, since it is larger than the sum of its proper divisors (2702258783).

15540251041 is a wasteful number, since it uses less digits than its factorization.

15540251041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196620.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15540251041 its reverse (14015204551), we get a palindrome (29555455592).

The spelling of 15540251041 in words is "fifteen billion, five hundred forty million, two hundred fifty-one thousand, forty-one".