11160615061561 has 16 divisors (see below), whose sum is σ = 12842540496000. Its totient is φ = 9500597071488.

The previous prime is 11160615061549. The next prime is 11160615061577. The reversal of 11160615061561 is 16516051606111.

It is a cyclic number.

It is not a de Polignac number, because 11160615061561 - 2⁵ = 11160615061529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11160615061501) 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 in 15 ways as a sum of consecutive naturals, for example, 6095301 + ... + 7711933.

It is an arithmetic number, because the mean of its divisors is an integer number (802658781000).

Almost surely, 2^{11160615061561} is an apocalyptic number.

It is an amenable number.

11160615061561 is a deficient number, since it is larger than the sum of its proper divisors (1681925434439).

11160615061561 is a wasteful number, since it uses less digits than its factorization.

11160615061561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623408.

The product of its (nonzero) digits is 32400, while the sum is 40.

Adding to 11160615061561 its reverse (16516051606111), we get a palindrome (27676666667672).

The spelling of 11160615061561 in words is "eleven trillion, one hundred sixty billion, six hundred fifteen million, sixty-one thousand, five hundred sixty-one".