20347225702671 has 32 divisors (see below), whose sum is σ = 32011661869056. Its totient is φ = 11249744220000.

The previous prime is 20347225702669. The next prime is 20347225702681. The reversal of 20347225702671 is 17620752274302.

It is not a de Polignac number, because 20347225702671 - 2¹ = 20347225702669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20347225702671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20347225702621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 344146 + ... + 6388496.

It is an arithmetic number, because the mean of its divisors is an integer number (1000364433408).

Almost surely, 2^{20347225702671} is an apocalyptic number.

20347225702671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20347225702671 is a deficient number, since it is larger than the sum of its proper divisors (11664436166385).

20347225702671 is a wasteful number, since it uses less digits than its factorization.

20347225702671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049563.

The product of its (nonzero) digits is 1975680, while the sum is 48.

Adding to 20347225702671 its reverse (17620752274302), we get a palindrome (37967977976973).

The spelling of 20347225702671 in words is "twenty trillion, three hundred forty-seven billion, two hundred twenty-five million, seven hundred two thousand, six hundred seventy-one".