20630613543 has 8 divisors (see below), whose sum is σ = 28456018800. Its totient is φ = 13279475328.

The previous prime is 20630613511. The next prime is 20630613559. The reversal of 20630613543 is 34531603602.

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

It is not a de Polignac number, because 20630613543 - 2⁵ = 20630613511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630613593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118566658 + ... + 118566831.

It is an arithmetic number, because the mean of its divisors is an integer number (3557002350).

Almost surely, 2^20630613543 is an apocalyptic number.

20630613543 is a deficient number, since it is larger than the sum of its proper divisors (7825405257).

20630613543 is a wasteful number, since it uses less digits than its factorization.

20630613543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237133521.

The product of its (nonzero) digits is 38880, while the sum is 33.

The spelling of 20630613543 in words is "twenty billion, six hundred thirty million, six hundred thirteen thousand, five hundred forty-three".