111051600656661 has 32 divisors (see below), whose sum is σ = 191571494411520. Its totient is φ = 62260735672512.

The previous prime is 111051600656603. The next prime is 111051600656663. The reversal of 111051600656661 is 166656006150111.

It is not a de Polignac number, because 111051600656661 - 2¹⁰ = 111051600655637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111051600656663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5543146650 + ... + 5543166683.

It is an arithmetic number, because the mean of its divisors is an integer number (5986609200360).

Almost surely, 2^{111051600656661} is an apocalyptic number.

It is an amenable number.

111051600656661 is a deficient number, since it is larger than the sum of its proper divisors (80519893754859).

111051600656661 is a wasteful number, since it uses less digits than its factorization.

111051600656661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11086313402 (or 11086313396 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 111051600656661 in words is "one hundred eleven trillion, fifty-one billion, six hundred million, six hundred fifty-six thousand, six hundred sixty-one".