6651776090 has 8 divisors (see below), whose sum is σ = 11973196980. Its totient is φ = 2660710432.

The previous prime is 6651776071. The next prime is 6651776093. The reversal of 6651776090 is 906771566.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6645021289 + 6754801 = 81517^2 + 2599^2 .

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

It is a super-2 number, since 2×6651776090² = 88492250302991376200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6651776093) 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, 332588795 + ... + 332588814.

Almost surely, 2^6651776090 is an apocalyptic number.

6651776090 is a deficient number, since it is larger than the sum of its proper divisors (5321420890).

6651776090 is a wasteful number, since it uses less digits than its factorization.

6651776090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665177616.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 6651776090 is about 81558.4213309699. The cubic root of 6651776090 is about 1880.6697562760.

The spelling of 6651776090 in words is "six billion, six hundred fifty-one million, seven hundred seventy-six thousand, ninety".