20554045430013 has 48 divisors (see below), whose sum is σ = 31135180916736. Its totient is φ = 13041311865120.

The previous prime is 20554045429993. The next prime is 20554045430029. The reversal of 20554045430013 is 31003454045502.

20554045430013 is a `hidden beast` number, since 20 + 5 + 540 + 4 + 54 + 30 + 0 + 13 = 666.

It is not a de Polignac number, because 20554045430013 - 2¹⁰ = 20554045428989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20554045430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554045430213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167964256 + ... + 168086582.

It is an arithmetic number, because the mean of its divisors is an integer number (648649602432).

Almost surely, 2^{20554045430013} is an apocalyptic number.

20554045430013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20554045430013 is a deficient number, since it is larger than the sum of its proper divisors (10581135486723).

20554045430013 is a wasteful number, since it uses less digits than its factorization.

20554045430013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126414 (or 126411 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 20554045430013 its reverse (31003454045502), we get a palindrome (51557499475515).

The spelling of 20554045430013 in words is "twenty trillion, five hundred fifty-four billion, forty-five million, four hundred thirty thousand, thirteen".