15541121402441 has 8 divisors (see below), whose sum is σ = 15644209431744. Its totient is φ = 15438035566800.

The previous prime is 15541121402431. The next prime is 15541121402473. The reversal of 15541121402441 is 14420412114551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15541121402441 - 2¹⁰ = 15541121401417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15541121402431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15153575 + ... + 16146611.

It is an arithmetic number, because the mean of its divisors is an integer number (1955526178968).

Almost surely, 2^{15541121402441} is an apocalyptic number.

It is an amenable number.

15541121402441 is a deficient number, since it is larger than the sum of its proper divisors (103088029303).

15541121402441 is a wasteful number, since it uses less digits than its factorization.

15541121402441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096831.

The product of its (nonzero) digits is 25600, while the sum is 35.

Adding to 15541121402441 its reverse (14420412114551), we get a palindrome (29961533516992).

The spelling of 15541121402441 in words is "fifteen trillion, five hundred forty-one billion, one hundred twenty-one million, four hundred two thousand, four hundred forty-one".