20684600958346 has 128 divisors (see below), whose sum is σ = 35868965529600. Its totient is φ = 8866514638080.

The previous prime is 20684600958341. The next prime is 20684600958361. The reversal of 20684600958346 is 64385900648602.

It is not an unprimeable number, because it can be changed into a prime (20684600958341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7767404211 + ... + 7767406873.

It is an arithmetic number, because the mean of its divisors is an integer number (280226293200).

Almost surely, 2^{20684600958346} is an apocalyptic number.

20684600958346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20684600958346 is a deficient number, since it is larger than the sum of its proper divisors (15184364571254).

20684600958346 is a wasteful number, since it uses less digits than its factorization.

20684600958346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804.

The product of its (nonzero) digits is 59719680, while the sum is 61.

The spelling of 20684600958346 in words is "twenty trillion, six hundred eighty-four billion, six hundred million, nine hundred fifty-eight thousand, three hundred forty-six".