20554243701 has 16 divisors (see below), whose sum is σ = 27484644096. Its totient is φ = 13663394496.

The previous prime is 20554243691. The next prime is 20554243727. The reversal of 20554243701 is 10734245502.

It is not a de Polignac number, because 20554243701 - 2¹⁷ = 20554112629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554243741) 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 15 ways as a sum of consecutive naturals, for example, 1562116 + ... + 1575218.

It is an arithmetic number, because the mean of its divisors is an integer number (1717790256).

Almost surely, 2^20554243701 is an apocalyptic number.

It is an amenable number.

20554243701 is a deficient number, since it is larger than the sum of its proper divisors (6930400395).

20554243701 is a wasteful number, since it uses less digits than its factorization.

20554243701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572.

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 20554243701 in words is "twenty billion, five hundred fifty-four million, two hundred forty-three thousand, seven hundred one".