111061660611 has 64 divisors (see below), whose sum is σ = 168671379456. Its totient is φ = 64405756800.

The previous prime is 111061660597. The next prime is 111061660627. The reversal of 111061660611 is 116066160111.

It is not a de Polignac number, because 111061660611 - 2⁷ = 111061660483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111061660691) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40136550 + ... + 40139316.

It is an arithmetic number, because the mean of its divisors is an integer number (2635490304).

Almost surely, 2^111061660611 is an apocalyptic number.

111061660611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111061660611 is a deficient number, since it is larger than the sum of its proper divisors (57609718845).

111061660611 is a wasteful number, since it uses less digits than its factorization.

111061660611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 111061660611 in words is "one hundred eleven billion, sixty-one million, six hundred sixty thousand, six hundred eleven".