6601650555165 has 8 divisors (see below), whose sum is σ = 10562640888288. Its totient is φ = 3520880296080.

The previous prime is 6601650555121. The next prime is 6601650555167. The reversal of 6601650555165 is 5615550561066.

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

It is not a de Polignac number, because 6601650555165 - 2⁸ = 6601650554909 is a prime.

It is a super-3 number, since 3×6601650555165³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601650555167) 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, 220055018491 + ... + 220055018520.

It is an arithmetic number, because the mean of its divisors is an integer number (1320330111036).

Almost surely, 2^{6601650555165} is an apocalyptic number.

It is an amenable number.

6601650555165 is a deficient number, since it is larger than the sum of its proper divisors (3960990333123).

6601650555165 is a wasteful number, since it uses less digits than its factorization.

6601650555165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440110037019.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 6601650555165 in words is "six trillion, six hundred one billion, six hundred fifty million, five hundred fifty-five thousand, one hundred sixty-five".