6755661607 has 4 divisors (see below), whose sum is σ = 6899399136. Its totient is φ = 6611924080.

The previous prime is 6755661599. The next prime is 6755661691. The reversal of 6755661607 is 7061665576.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6755661607 - 2³ = 6755661599 is a prime.

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 a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6755661007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71868694 + ... + 71868787.

It is an arithmetic number, because the mean of its divisors is an integer number (1724849784).

Almost surely, 2^6755661607 is an apocalyptic number.

6755661607 is a deficient number, since it is larger than the sum of its proper divisors (143737529).

6755661607 is a wasteful number, since it uses less digits than its factorization.

6755661607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143737528.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The square root of 6755661607 is about 82192.8318468223. The cubic root of 6755661607 is about 1890.4098107261.

The spelling of 6755661607 in words is "six billion, seven hundred fifty-five million, six hundred sixty-one thousand, six hundred seven".