6662788562 has 8 divisors (see below), whose sum is σ = 10158022092. Its totient is φ = 3276781200.

The previous prime is 6662788537. The next prime is 6662788571. The reversal of 6662788562 is 2658872666.

It can be written as a sum of positive squares in 2 ways, for example, as 6640783081 + 22005481 = 81491^2 + 4691^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6662788498 and 6662788507.

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, 27306389 + ... + 27306632.

Almost surely, 2^6662788562 is an apocalyptic number.

6662788562 is a deficient number, since it is larger than the sum of its proper divisors (3495233530).

6662788562 is a wasteful number, since it uses less digits than its factorization.

6662788562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54613084.

The product of its digits is 11612160, while the sum is 56.

The square root of 6662788562 is about 81625.9061940509. The cubic root of 6662788562 is about 1881.7070433532.

The spelling of 6662788562 in words is "six billion, six hundred sixty-two million, seven hundred eighty-eight thousand, five hundred sixty-two".