20700251726072 has 32 divisors (see below), whose sum is σ = 39450349458000. Its totient is φ = 10180167993600.

The previous prime is 20700251726059. The next prime is 20700251726117. The reversal of 20700251726072 is 27062715200702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17507447 + ... + 18652377.

Almost surely, 2^{20700251726072} is an apocalyptic number.

It is an amenable number.

20700251726072 is a deficient number, since it is larger than the sum of its proper divisors (18750097731928).

20700251726072 is a wasteful number, since it uses less digits than its factorization.

20700251726072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182047 (or 1182043 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

Adding to 20700251726072 its reverse (27062715200702), we get a palindrome (47762966926774).

The spelling of 20700251726072 in words is "twenty trillion, seven hundred billion, two hundred fifty-one million, seven hundred twenty-six thousand, seventy-two".