6655994 has 8 divisors (see below), whose sum is σ = 10120980. Its totient is φ = 3282336.

The previous prime is 6655951. The next prime is 6655997. The reversal of 6655994 is 4995566.

It can be written as a sum of positive squares in 2 ways, for example, as 6568969 + 87025 = 2563^2 + 295^2 .

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

It is a super-2 number, since 2×6655994² = 88604512256072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6655997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22649 + ... + 22940.

Almost surely, 2^6655994 is an apocalyptic number.

6655994 is a deficient number, since it is larger than the sum of its proper divisors (3464986).

6655994 is a wasteful number, since it uses less digits than its factorization.

6655994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45664.

The product of its digits is 291600, while the sum is 44.

The square root of 6655994 is about 2579.9213166296. The cubic root of 6655994 is about 188.1067184952.

The spelling of 6655994 in words is "six million, six hundred fifty-five thousand, nine hundred ninety-four".