2669578695680 has 176 divisors, whose sum is σ = 6931155100800. Its totient is φ = 980732510208.

The previous prime is 2669578695677. The next prime is 2669578695779. The reversal of 2669578695680 is 865968759662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13144667 + ... + 13346213.

Almost surely, 2^{2669578695680} is an apocalyptic number.

2669578695680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2669578695680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465577550400).

2669578695680 is an abundant number, since it is smaller than the sum of its proper divisors (4261576405120).

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

2669578695680 is a wasteful number, since it uses less digits than its factorization.

2669578695680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201784 (or 201766 counting only the distinct ones).

The product of its (nonzero) digits is 2351462400, while the sum is 77.

The spelling of 2669578695680 in words is "two trillion, six hundred sixty-nine billion, five hundred seventy-eight million, six hundred ninety-five thousand, six hundred eighty".