538750516663 has 4 divisors (see below), whose sum is σ = 547582492408. Its totient is φ = 529918540920.

The previous prime is 538750516649. The next prime is 538750516673. The reversal of 538750516663 is 366615057835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538750516663 - 2²¹ = 538748419511 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 (538750516673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415987781 + ... + 4415987902.

It is an arithmetic number, because the mean of its divisors is an integer number (136895623102).

Almost surely, 2^538750516663 is an apocalyptic number.

538750516663 is a deficient number, since it is larger than the sum of its proper divisors (8831975745).

538750516663 is an equidigital number, since it uses as much as digits as its factorization.

538750516663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831975744.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 538750516663 in words is "five hundred thirty-eight billion, seven hundred fifty million, five hundred sixteen thousand, six hundred sixty-three".