6616665010 has 8 divisors (see below), whose sum is σ = 11909997036. Its totient is φ = 2646666000.

The previous prime is 6616665007. The next prime is 6616665019. The reversal of 6616665010 is 105666166.

It can be written as a sum of positive squares in 2 ways, for example, as 6179060449 + 437604561 = 78607^2 + 20919^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6616665019) 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, 330833241 + ... + 330833260.

Almost surely, 2^6616665010 is an apocalyptic number.

6616665010 is a deficient number, since it is larger than the sum of its proper divisors (5293332026).

6616665010 is a wasteful number, since it uses less digits than its factorization.

6616665010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661666508.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 6616665010 is about 81342.8854295199. The cubic root of 6616665010 is about 1877.3549087259.

The spelling of 6616665010 in words is "six billion, six hundred sixteen million, six hundred sixty-five thousand, ten".