100566500165 has 8 divisors (see below), whose sum is σ = 121560675480. Its totient is φ = 79865949952.

The previous prime is 100566500141. The next prime is 100566500173. The reversal of 100566500165 is 561005665001.

It can be written as a sum of positive squares in 4 ways, for example, as 37401239236 + 63165260929 = 193394^2 + 251327^2 .

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 100566500165 - 2⁸ = 100566499909 is a prime.

It is a super-2 number, since 2×100566500165² (a number of 23 digits) contains 22 as substring.

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, 73405520 + ... + 73406889.

It is an arithmetic number, because the mean of its divisors is an integer number (15195084435).

Almost surely, 2^100566500165 is an apocalyptic number.

It is an amenable number.

100566500165 is a deficient number, since it is larger than the sum of its proper divisors (20994175315).

100566500165 is a wasteful number, since it uses less digits than its factorization.

100566500165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146812551.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 100566500165 in words is "one hundred billion, five hundred sixty-six million, five hundred thousand, one hundred sixty-five".