20337170551 has 2 divisors, whose sum is σ = 20337170552. Its totient is φ = 20337170550.

The previous prime is 20337170537. The next prime is 20337170569. The reversal of 20337170551 is 15507173302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20337170551 - 2¹³ = 20337162359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20337170501) 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 as a sum of consecutive naturals, namely, 10168585275 + 10168585276.

It is an arithmetic number, because the mean of its divisors is an integer number (10168585276).

Almost surely, 2^20337170551 is an apocalyptic number.

20337170551 is a deficient number, since it is larger than the sum of its proper divisors (1).

20337170551 is an equidigital number, since it uses as much as digits as its factorization.

20337170551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 34.

The spelling of 20337170551 in words is "twenty billion, three hundred thirty-seven million, one hundred seventy thousand, five hundred fifty-one".