6678145417767 has 16 divisors (see below), whose sum is σ = 9092053636320. Its totient is φ = 4359057403392.

The previous prime is 6678145417753. The next prime is 6678145417787. The reversal of 6678145417767 is 7677145418766.

It is not a de Polignac number, because 6678145417767 - 2⁴ = 6678145417751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678145417787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111261292 + ... + 111321297.

It is an arithmetic number, because the mean of its divisors is an integer number (568253352270).

Almost surely, 2^{6678145417767} is an apocalyptic number.

6678145417767 is a deficient number, since it is larger than the sum of its proper divisors (2413908218553).

6678145417767 is a wasteful number, since it uses less digits than its factorization.

6678145417767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222582802.

The product of its digits is 331914240, while the sum is 69.

Subtracting 6678145417767 from its reverse (7677145418766), we obtain a palindrome (999000000999).

The spelling of 6678145417767 in words is "six trillion, six hundred seventy-eight billion, one hundred forty-five million, four hundred seventeen thousand, seven hundred sixty-seven".