6766756157 has 8 divisors (see below), whose sum is σ = 7758628416. Its totient is φ = 5781182112.

The previous prime is 6766756123. The next prime is 6766756163. The reversal of 6766756157 is 7516576676.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6766756157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6766756057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572248 + ... + 1576545.

It is an arithmetic number, because the mean of its divisors is an integer number (969828552).

Almost surely, 2^6766756157 is an apocalyptic number.

It is an amenable number.

6766756157 is a deficient number, since it is larger than the sum of its proper divisors (991872259).

6766756157 is a wasteful number, since it uses less digits than its factorization.

6766756157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149107.

The product of its digits is 11113200, while the sum is 56.

The square root of 6766756157 is about 82260.2951429181. The cubic root of 6766756157 is about 1891.4440926206. Note that the first 3 decimals are identical.

The spelling of 6766756157 in words is "six billion, seven hundred sixty-six million, seven hundred fifty-six thousand, one hundred fifty-seven".