6655166601615 has 48 divisors (see below), whose sum is σ = 13257219456000. Its totient is φ = 3025365414336.

The previous prime is 6655166601613. The next prime is 6655166601637. The reversal of 6655166601615 is 5161066615566.

It is not a de Polignac number, because 6655166601615 - 2¹ = 6655166601613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655166601613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58959015 + ... + 59071784.

It is an arithmetic number, because the mean of its divisors is an integer number (276192072000).

Almost surely, 2^{6655166601615} is an apocalyptic number.

6655166601615 is a deficient number, since it is larger than the sum of its proper divisors (6602052854385).

6655166601615 is a wasteful number, since it uses less digits than its factorization.

6655166601615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118030996 (or 118030993 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 6655166601615 in words is "six trillion, six hundred fifty-five billion, one hundred sixty-six million, six hundred one thousand, six hundred fifteen".