111347531036666 has 16 divisors (see below), whose sum is σ = 167183074476288. Its totient is φ = 55619845798800.

The previous prime is 111347531036657. The next prime is 111347531036699. The reversal of 111347531036666 is 666630135743111.

It is a super-2 number, since 2×111347531036666² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34250696 + ... + 37360476.

It is an arithmetic number, because the mean of its divisors is an integer number (10448942154768).

Almost surely, 2^{111347531036666} is an apocalyptic number.

111347531036666 is a deficient number, since it is larger than the sum of its proper divisors (55835543439622).

111347531036666 is a wasteful number, since it uses less digits than its factorization.

111347531036666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127117.

The product of its (nonzero) digits is 4898880, while the sum is 53.

Adding to 111347531036666 its reverse (666630135743111), we get a palindrome (777977666779777).

The spelling of 111347531036666 in words is "one hundred eleven trillion, three hundred forty-seven billion, five hundred thirty-one million, thirty-six thousand, six hundred sixty-six".