20638055702307 has 16 divisors (see below), whose sum is σ = 28466591732640. Its totient is φ = 13284122003712.

The previous prime is 20638055702281. The next prime is 20638055702309. The reversal of 20638055702307 is 70320755083602.

It is not a de Polignac number, because 20638055702307 - 2¹⁹ = 20638055178019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20638055702309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7117783 + ... + 9588479.

It is an arithmetic number, because the mean of its divisors is an integer number (1779161983290).

Almost surely, 2^{20638055702307} is an apocalyptic number.

20638055702307 is a deficient number, since it is larger than the sum of its proper divisors (7828536030333).

20638055702307 is a wasteful number, since it uses less digits than its factorization.

20638055702307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566742.

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 20638055702307 in words is "twenty trillion, six hundred thirty-eight billion, fifty-five million, seven hundred two thousand, three hundred seven".