1115550241541 has 16 divisors (see below), whose sum is σ = 1128898353024. Its totient is φ = 1102280857344.

The previous prime is 1115550241501. The next prime is 1115550241579. The reversal of 1115550241541 is 1451420555111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115550241541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115550241501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176424206 + ... + 176430528.

It is an arithmetic number, because the mean of its divisors is an integer number (70556147064).

Almost surely, 2^{1115550241541} is an apocalyptic number.

It is an amenable number.

1115550241541 is a deficient number, since it is larger than the sum of its proper divisors (13348111483).

1115550241541 is a wasteful number, since it uses less digits than its factorization.

1115550241541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220.

The product of its (nonzero) digits is 20000, while the sum is 35.

Adding to 1115550241541 its reverse (1451420555111), we get a palindrome (2566970796652).

The spelling of 1115550241541 in words is "one trillion, one hundred fifteen billion, five hundred fifty million, two hundred forty-one thousand, five hundred forty-one".