6616106005 has 4 divisors (see below), whose sum is σ = 7939327212. Its totient is φ = 5292884800.

The previous prime is 6616105981. The next prime is 6616106039. The reversal of 6616106005 is 5006016166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2944473169 + 3671632836 = 54263^2 + 60594^2 .

It is not a de Polignac number, because 6616106005 - 2⁵ = 6616105973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661610596 + ... + 661610605.

It is an arithmetic number, because the mean of its divisors is an integer number (1984831803).

Almost surely, 2^6616106005 is an apocalyptic number.

It is an amenable number.

6616106005 is a deficient number, since it is larger than the sum of its proper divisors (1323221207).

6616106005 is a wasteful number, since it uses less digits than its factorization.

6616106005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323221206.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6616106005 is about 81339.4492543440. The cubic root of 6616106005 is about 1877.3020381667.

The spelling of 6616106005 in words is "six billion, six hundred sixteen million, one hundred six thousand, five".