20340655420754 has 8 divisors (see below), whose sum is σ = 30524985424560. Its totient is φ = 10165660279236.

The previous prime is 20340655420741. The next prime is 20340655420759. The reversal of 20340655420754 is 45702455604302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20340655420699 and 20340655420708.

It is not an unprimeable number, because it can be changed into a prime (20340655420759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333710124 + ... + 2333718839.

It is an arithmetic number, because the mean of its divisors is an integer number (3815623178070).

Almost surely, 2^{20340655420754} is an apocalyptic number.

20340655420754 is a deficient number, since it is larger than the sum of its proper divisors (10184330003806).

20340655420754 is a wasteful number, since it uses less digits than its factorization.

20340655420754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667431144.

The product of its (nonzero) digits is 4032000, while the sum is 47.

The spelling of 20340655420754 in words is "twenty trillion, three hundred forty billion, six hundred fifty-five million, four hundred twenty thousand, seven hundred fifty-four".