111100660661 has 8 divisors (see below), whose sum is σ = 116303900544. Its totient is φ = 105928485520.

The previous prime is 111100660579. The next prime is 111100660663. The reversal of 111100660661 is 166066001111.

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 111100660661 - 2¹⁸ = 111100398517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100660663) 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, 7758866 + ... + 7773171.

It is an arithmetic number, because the mean of its divisors is an integer number (14537987568).

Almost surely, 2^111100660661 is an apocalyptic number.

It is an amenable number.

111100660661 is a deficient number, since it is larger than the sum of its proper divisors (5203239883).

111100660661 is a wasteful number, since it uses less digits than its factorization.

111100660661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15532371.

The product of its (nonzero) digits is 1296, while the sum is 29.

Adding to 111100660661 its reverse (166066001111), we get a palindrome (277166661772).

The spelling of 111100660661 in words is "one hundred eleven billion, one hundred million, six hundred sixty thousand, six hundred sixty-one".