6166744642 has 8 divisors (see below), whose sum is σ = 9376831116. Its totient is φ = 3041134272.

The previous prime is 6166744583. The next prime is 6166744711. The reversal of 6166744642 is 2464476616.

It can be written as a sum of positive squares in 2 ways, for example, as 6132299481 + 34445161 = 78309^2 + 5869^2 .

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 = 6166744592 and 6166744601.

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, 21118843 + ... + 21119134.

Almost surely, 2^6166744642 is an apocalyptic number.

6166744642 is a deficient number, since it is larger than the sum of its proper divisors (3210086474).

6166744642 is a wasteful number, since it uses less digits than its factorization.

6166744642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42238052.

The product of its digits is 1161216, while the sum is 46.

The square root of 6166744642 is about 78528.6230746471. The cubic root of 6166744642 is about 1833.8000844061.

The spelling of 6166744642 in words is "six billion, one hundred sixty-six million, seven hundred forty-four thousand, six hundred forty-two".