6667078061 has 8 divisors (see below), whose sum is σ = 7796716224. Its totient is φ = 5581739520.

The previous prime is 6667078051. The next prime is 6667078079. The reversal of 6667078061 is 1608707666.

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

It is not a de Polignac number, because 6667078061 - 2²² = 6662883757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6667077997 and 6667078015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667078051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11074580 + ... + 11075181.

It is an arithmetic number, because the mean of its divisors is an integer number (974589528).

Almost surely, 2^6667078061 is an apocalyptic number.

It is an amenable number.

6667078061 is a deficient number, since it is larger than the sum of its proper divisors (1129638163).

6667078061 is a wasteful number, since it uses less digits than its factorization.

6667078061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22149811.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 6667078061 is about 81652.1773194077. The cubic root of 6667078061 is about 1882.1107706547.

The spelling of 6667078061 in words is "six billion, six hundred sixty-seven million, seventy-eight thousand, sixty-one".