109610661 has 8 divisors (see below), whose sum is σ = 146235904. Its totient is φ = 73029600.

The previous prime is 109610659. The next prime is 109610681. The reversal of 109610661 is 166016901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109610661 - 2¹ = 109610659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109610651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741 + ... + 15546.

It is an arithmetic number, because the mean of its divisors is an integer number (18279488).

Almost surely, 2^109610661 is an apocalyptic number.

It is an amenable number.

109610661 is a deficient number, since it is larger than the sum of its proper divisors (36625243).

109610661 is a wasteful number, since it uses less digits than its factorization.

109610661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22091.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 109610661 is about 10469.5110201002. The cubic root of 109610661 is about 478.5760184690.

The spelling of 109610661 in words is "one hundred nine million, six hundred ten thousand, six hundred sixty-one".