20012541055 has 16 divisors (see below), whose sum is σ = 25884248544. Its totient is φ = 14765984640.

The previous prime is 20012541053. The next prime is 20012541077. The reversal of 20012541055 is 55014521002.

It is not a de Polignac number, because 20012541055 - 2¹ = 20012541053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012541053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52536 + ... + 206845.

It is an arithmetic number, because the mean of its divisors is an integer number (1617765534).

Almost surely, 2^20012541055 is an apocalyptic number.

20012541055 is a deficient number, since it is larger than the sum of its proper divisors (5871707489).

20012541055 is a wasteful number, since it uses less digits than its factorization.

20012541055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260586.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 20012541055 in words is "twenty billion, twelve million, five hundred forty-one thousand, fifty-five".