104155500665 has 8 divisors (see below), whose sum is σ = 128035054728. Its totient is φ = 81292097920.

The previous prime is 104155500653. The next prime is 104155500677. The reversal of 104155500665 is 566005551401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104155500653) and next prime (104155500677).

It can be written as a sum of positive squares in 4 ways, for example, as 351037696 + 103804462969 = 18736^2 + 322187^2 .

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

It is not a de Polignac number, because 104155500665 - 2⁴ = 104155500649 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, 254037602 + ... + 254038011.

It is an arithmetic number, because the mean of its divisors is an integer number (16004381841).

Almost surely, 2^104155500665 is an apocalyptic number.

It is an amenable number.

104155500665 is a deficient number, since it is larger than the sum of its proper divisors (23879554063).

104155500665 is an equidigital number, since it uses as much as digits as its factorization.

104155500665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508075659.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 104155500665 in words is "one hundred four billion, one hundred fifty-five million, five hundred thousand, six hundred sixty-five".