5101665100165 has 8 divisors (see below), whose sum is σ = 6287457529080. Its totient is φ = 3971025807552.

The previous prime is 5101665100157. The next prime is 5101665100199. The reversal of 5101665100165 is 5610015661015.

It can be written as a sum of positive squares in 4 ways, for example, as 1423673739684 + 3677991360481 = 1193178^2 + 1917809^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5101665100165 - 2³ = 5101665100157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent 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, 13788283870 + ... + 13788284239.

It is an arithmetic number, because the mean of its divisors is an integer number (785932191135).

Almost surely, 2^{5101665100165} is an apocalyptic number.

It is an amenable number.

5101665100165 is a deficient number, since it is larger than the sum of its proper divisors (1185792428915).

5101665100165 is a wasteful number, since it uses less digits than its factorization.

5101665100165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27576568151.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 5101665100165 in words is "five trillion, one hundred one billion, six hundred sixty-five million, one hundred thousand, one hundred sixty-five".