20126261744502 has 8 divisors (see below), whose sum is σ = 40252523489016. Its totient is φ = 6708753914832.

The previous prime is 20126261744473. The next prime is 20126261744569. The reversal of 20126261744502 is 20544716262102.

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

20126261744502 is an admirable number.

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, 1677188478703 + ... + 1677188478714.

It is an arithmetic number, because the mean of its divisors is an integer number (5031565436127).

Almost surely, 2^{20126261744502} is an apocalyptic number.

20126261744502 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.

20126261744502 is a wasteful number, since it uses less digits than its factorization.

20126261744502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354376957422.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 20126261744502 in words is "twenty trillion, one hundred twenty-six billion, two hundred sixty-one million, seven hundred forty-four thousand, five hundred two".