6677305433778 has 16 divisors (see below), whose sum is σ = 15262412420160. Its totient is φ = 1907801552496.

The previous prime is 6677305433759. The next prime is 6677305433789. The reversal of 6677305433778 is 8773345037766.

It is a super-2 number, since 2×6677305433778² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79491731313 + ... + 79491731396.

It is an arithmetic number, because the mean of its divisors is an integer number (953900776260).

Almost surely, 2^{6677305433778} is an apocalyptic number.

6677305433778 is an abundant number, since it is smaller than the sum of its proper divisors (8585106986382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6677305433778 is a wasteful number, since it uses less digits than its factorization.

6677305433778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158983462721.

The product of its (nonzero) digits is 373403520, while the sum is 66.

The spelling of 6677305433778 in words is "six trillion, six hundred seventy-seven billion, three hundred five million, four hundred thirty-three thousand, seven hundred seventy-eight".