20144553013 has 32 divisors (see below), whose sum is σ = 23078764800. Its totient is φ = 17442501120.

The previous prime is 20144553007. The next prime is 20144553043. The reversal of 20144553013 is 31035544102.

It is a cyclic number.

It is not a de Polignac number, because 20144553013 - 2¹³ = 20144544821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144553043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3948138 + ... + 3953236.

It is an arithmetic number, because the mean of its divisors is an integer number (721211400).

Almost surely, 2^20144553013 is an apocalyptic number.

20144553013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20144553013 is a deficient number, since it is larger than the sum of its proper divisors (2934211787).

20144553013 is a wasteful number, since it uses less digits than its factorization.

20144553013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 20144553013 in words is "twenty billion, one hundred forty-four million, five hundred fifty-three thousand, thirteen".