6669737122 has 4 divisors (see below), whose sum is σ = 10004605686. Its totient is φ = 3334868560.

The previous prime is 6669737117. The next prime is 6669737131. The reversal of 6669737122 is 2217379666.

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

It can be written as a sum of positive squares in only one way, i.e., 3547274481 + 3122462641 = 59559^2 + 55879^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1667434279 + ... + 1667434282.

Almost surely, 2^6669737122 is an apocalyptic number.

6669737122 is a deficient number, since it is larger than the sum of its proper divisors (3334868564).

6669737122 is a wasteful number, since it uses less digits than its factorization.

6669737122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334868563.

The product of its digits is 1143072, while the sum is 49.

The square root of 6669737122 is about 81668.4585504098. The cubic root of 6669737122 is about 1882.3609543238.

The spelling of 6669737122 in words is "six billion, six hundred sixty-nine million, seven hundred thirty-seven thousand, one hundred twenty-two".