6615550506 has 8 divisors (see below), whose sum is σ = 13231101024. Its totient is φ = 2205183500.

The previous prime is 6615550477. The next prime is 6615550507. The reversal of 6615550506 is 6050555166.

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

6615550506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6615550507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551295870 + ... + 551295881.

It is an arithmetic number, because the mean of its divisors is an integer number (1653887628).

Almost surely, 2^6615550506 is an apocalyptic number.

6615550506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6615550506 is a wasteful number, since it uses less digits than its factorization.

6615550506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102591756.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 6615550506 is about 81336.0344865669. The cubic root of 6615550506 is about 1877.2494962540.

The spelling of 6615550506 in words is "six billion, six hundred fifteen million, five hundred fifty thousand, five hundred six".