6647014090 has 16 divisors (see below), whose sum is σ = 11984812488. Its totient is φ = 2654319616.

The previous prime is 6647014069. The next prime is 6647014091. The reversal of 6647014090 is 904107466.

It can be written as a sum of positive squares in 4 ways, for example, as 6289917481 + 357096609 = 79309^2 + 18897^2 .

It is not an unprimeable number, because it can be changed into a prime (6647014091) 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, 554527 + ... + 566386.

Almost surely, 2^6647014090 is an apocalyptic number.

6647014090 is a deficient number, since it is larger than the sum of its proper divisors (5337798398).

6647014090 is a wasteful number, since it uses less digits than its factorization.

6647014090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121513.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 6647014090 is about 81529.2223070967. Note that the first 3 decimals coincide. The cubic root of 6647014090 is about 1880.2208592573.

The spelling of 6647014090 in words is "six billion, six hundred forty-seven million, fourteen thousand, ninety".