20294740669808 has 40 divisors (see below), whose sum is σ = 42959440162416. Its totient is φ = 9211174963200.

The previous prime is 20294740669771. The next prime is 20294740669873. The reversal of 20294740669808 is 80896604749202.

It is a congruent number.

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, 85550963 + ... + 85787858.

Almost surely, 2^{20294740669808} is an apocalyptic number.

It is an amenable number.

20294740669808 is an abundant number, since it is smaller than the sum of its proper divisors (22664699492608).

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

20294740669808 is a wasteful number, since it uses less digits than its factorization.

20294740669808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171339513 (or 171339507 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 65.

The spelling of 20294740669808 in words is "twenty trillion, two hundred ninety-four billion, seven hundred forty million, six hundred sixty-nine thousand, eight hundred eight".