20554431101541 has 20 divisors (see below), whose sum is σ = 32320807842400. Its totient is φ = 12981745957896.

The previous prime is 20554431101507. The next prime is 20554431101543. The reversal of 20554431101541 is 14510113445502.

20554431101541 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 4 + 4 + 3 + 1 + 101 + 541 = 666.

It is not a de Polignac number, because 20554431101541 - 2¹³ = 20554431093349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20554431101496 and 20554431101505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554431101543) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6677851321 + ... + 6677854398.

It is an arithmetic number, because the mean of its divisors is an integer number (1616040392120).

Almost surely, 2^{20554431101541} is an apocalyptic number.

It is an amenable number.

20554431101541 is a deficient number, since it is larger than the sum of its proper divisors (11766376740859).

20554431101541 is a wasteful number, since it uses less digits than its factorization.

20554431101541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13355705750 (or 13355705741 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 20554431101541 in words is "twenty trillion, five hundred fifty-four billion, four hundred thirty-one million, one hundred one thousand, five hundred forty-one".