20553588043747 has 8 divisors (see below), whose sum is σ = 22486713043392. Its totient is φ = 18631232543400.

The previous prime is 20553588043717. The next prime is 20553588043799. The reversal of 20553588043747 is 74734088535502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20553588043747 - 2²³ = 20553579655139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20553588043717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2692370829 + ... + 2692378462.

It is an arithmetic number, because the mean of its divisors is an integer number (2810839130424).

Almost surely, 2^{20553588043747} is an apocalyptic number.

20553588043747 is a deficient number, since it is larger than the sum of its proper divisors (1933124999645).

20553588043747 is a wasteful number, since it uses less digits than its factorization.

20553588043747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5384749649.

The product of its (nonzero) digits is 112896000, while the sum is 61.

The spelling of 20553588043747 in words is "twenty trillion, five hundred fifty-three billion, five hundred eighty-eight million, forty-three thousand, seven hundred forty-seven".