15545104004 has 6 divisors (see below), whose sum is σ = 27203932014. Its totient is φ = 7772552000.

The previous prime is 15545103979. The next prime is 15545104009. The reversal of 15545104004 is 40040154551.

It can be written as a sum of positive squares in only one way, i.e., 15277454404 + 267649600 = 123602^2 + 16360^2 .

It is not an unprimeable number, because it can be changed into a prime (15545104009) 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 as a sum of consecutive naturals, namely, 1943137997 + ... + 1943138004.

It is an arithmetic number, because the mean of its divisors is an integer number (4533988669).

Almost surely, 2^15545104004 is an apocalyptic number.

It is an amenable number.

15545104004 is a deficient number, since it is larger than the sum of its proper divisors (11658828010).

15545104004 is a wasteful number, since it uses less digits than its factorization.

15545104004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886276005 (or 3886276003 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 15545104004 its reverse (40040154551), we get a palindrome (55585258555).

The spelling of 15545104004 in words is "fifteen billion, five hundred forty-five million, one hundred four thousand, four".