6601171015 has 8 divisors (see below), whose sum is σ = 8105624208. Its totient is φ = 5158124160.

The previous prime is 6601170971. The next prime is 6601171019. The reversal of 6601171015 is 5101711066.

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

It is not a de Polignac number, because 6601171015 - 2¹³ = 6601162823 is a prime.

It is a super-2 number, since 2×6601171015² = 87150917538552260450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601171019) 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, 15351346 + ... + 15351775.

It is an arithmetic number, because the mean of its divisors is an integer number (1013203026).

Almost surely, 2^6601171015 is an apocalyptic number.

6601171015 is a deficient number, since it is larger than the sum of its proper divisors (1504453193).

6601171015 is a wasteful number, since it uses less digits than its factorization.

6601171015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30703169.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 6601171015 is about 81247.5908258208. The cubic root of 6601171015 is about 1875.8883863588. Note that the first 3 decimals are identical.

It can be divided in two parts, 66011 and 71015, that added together give a triangular number (137026 = T₅₂₃).

The spelling of 6601171015 in words is "six billion, six hundred one million, one hundred seventy-one thousand, fifteen".