1115562105661 has 16 divisors (see below), whose sum is σ = 1184515358400. Its totient is φ = 1046983237888.

The previous prime is 1115562105659. The next prime is 1115562105769. The reversal of 1115562105661 is 1665012655111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1115562105661 - 2¹ = 1115562105659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115562103661) 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, 8595510 + ... + 8724328.

It is an arithmetic number, because the mean of its divisors is an integer number (74032209900).

Almost surely, 2^{1115562105661} is an apocalyptic number.

It is an amenable number.

1115562105661 is a deficient number, since it is larger than the sum of its proper divisors (68953252739).

1115562105661 is a wasteful number, since it uses less digits than its factorization.

1115562105661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130268.

The product of its (nonzero) digits is 54000, while the sum is 40.

The spelling of 1115562105661 in words is "one trillion, one hundred fifteen billion, five hundred sixty-two million, one hundred five thousand, six hundred sixty-one".