110556661 has 6 divisors (see below), whose sum is σ = 117442850. Its totient is φ = 104053056.

The previous prime is 110556637. The next prime is 110556673. The reversal of 110556661 is 166655011.

It can be written as a sum of positive squares in 3 ways, for example, as 82264900 + 28291761 = 9070^2 + 5319^2 .

It is not a de Polignac number, because 110556661 - 2¹⁷ = 110425589 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 (110556631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190986 + ... + 191563.

Almost surely, 2^110556661 is an apocalyptic number.

It is an amenable number.

110556661 is a deficient number, since it is larger than the sum of its proper divisors (6886189).

110556661 is an equidigital number, since it uses as much as digits as its factorization.

110556661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382583 (or 382566 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 110556661 is about 10514.5927643442. The cubic root of 110556661 is about 479.9488675278.

The spelling of 110556661 in words is "one hundred ten million, five hundred fifty-six thousand, six hundred sixty-one".