6555599907 has 8 divisors (see below), whose sum is σ = 8779997184. Its totient is φ = 4350801288.

The previous prime is 6555599899. The next prime is 6555599933. The reversal of 6555599907 is 7099955556.

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

It is not a de Polignac number, because 6555599907 - 2³ = 6555599899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6555599957) 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, 4898883 + ... + 4900220.

It is an arithmetic number, because the mean of its divisors is an integer number (1097499648).

Almost surely, 2^6555599907 is an apocalyptic number.

6555599907 is a deficient number, since it is larger than the sum of its proper divisors (2224397277).

6555599907 is a wasteful number, since it uses less digits than its factorization.

6555599907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9799329.

The product of its (nonzero) digits is 19136250, while the sum is 60.

The square root of 6555599907 is about 80966.6592308217. The cubic root of 6555599907 is about 1871.5616899825.

The spelling of 6555599907 in words is "six billion, five hundred fifty-five million, five hundred ninety-nine thousand, nine hundred seven".