100239371665 has 8 divisors (see below), whose sum is σ = 120375635688. Its totient is φ = 80132570880.

The previous prime is 100239371641. The next prime is 100239371669. The reversal of 100239371665 is 566173932001.

It can be written as a sum of positive squares in 4 ways, for example, as 25915526289 + 74323845376 = 160983^2 + 272624^2 .

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

It is not a de Polignac number, because 100239371665 - 2¹¹ = 100239369617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100239371669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7358322 + ... + 7371931.

It is an arithmetic number, because the mean of its divisors is an integer number (15046954461).

Almost surely, 2^100239371665 is an apocalyptic number.

It is an amenable number.

100239371665 is a deficient number, since it is larger than the sum of its proper divisors (20136264023).

100239371665 is a wasteful number, since it uses less digits than its factorization.

100239371665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14731619.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 100239371665 in words is "one hundred billion, two hundred thirty-nine million, three hundred seventy-one thousand, six hundred sixty-five".