20105124726 has 8 divisors (see below), whose sum is σ = 40210249464. Its totient is φ = 6701708240.

The previous prime is 20105124709. The next prime is 20105124751. The reversal of 20105124726 is 62742150102.

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

20105124726 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20105124693 and 20105124702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675427055 + ... + 1675427066.

It is an arithmetic number, because the mean of its divisors is an integer number (5026281183).

Almost surely, 2^20105124726 is an apocalyptic number.

20105124726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20105124726 is a wasteful number, since it uses less digits than its factorization.

20105124726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350854126.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 20105124726 its reverse (62742150102), we get a palindrome (82847274828).

The spelling of 20105124726 in words is "twenty billion, one hundred five million, one hundred twenty-four thousand, seven hundred twenty-six".