100661065 has 8 divisors (see below), whose sum is σ = 123602688. Its totient is φ = 78655920.

The previous prime is 100661051. The next prime is 100661081. The reversal of 100661065 is 560166001.

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

It is a de Polignac number, because none of the positive numbers 2^k-100661065 is a prime.

It is a Duffinian number.

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, 233881 + ... + 234310.

It is an arithmetic number, because the mean of its divisors is an integer number (15450336).

Almost surely, 2^100661065 is an apocalyptic number.

It is an amenable number.

100661065 is a deficient number, since it is larger than the sum of its proper divisors (22941623).

100661065 is an equidigital number, since it uses as much as digits as its factorization.

100661065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468239.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 100661065 is about 10032.9988039469. The cubic root of 100661065 is about 465.1794351246.

The spelling of 100661065 in words is "one hundred million, six hundred sixty-one thousand, sixty-five".