6667078755 has 32 divisors (see below), whose sum is σ = 10776628800. Its totient is φ = 3519511040.

The previous prime is 6667078721. The next prime is 6667078771. The reversal of 6667078755 is 5578707666.

It is not a de Polignac number, because 6667078755 - 2¹⁹ = 6666554467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6667078695 and 6667078704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649765 + ... + 659945.

It is an arithmetic number, because the mean of its divisors is an integer number (336769650).

Almost surely, 2^6667078755 is an apocalyptic number.

6667078755 is a deficient number, since it is larger than the sum of its proper divisors (4109550045).

6667078755 is a wasteful number, since it uses less digits than its factorization.

6667078755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631.

The product of its (nonzero) digits is 14817600, while the sum is 57.

The square root of 6667078755 is about 81652.1815691412. The cubic root of 6667078755 is about 1882.1108359599.

The spelling of 6667078755 in words is "six billion, six hundred sixty-seven million, seventy-eight thousand, seven hundred fifty-five".