20702308900441 has 27 divisors (see below), whose sum is σ = 24336739905597. Its totient is φ = 17559278956800.

The previous prime is 20702308900439. The next prime is 20702308900487. The reversal of 20702308900441 is 14400980320702.

The square root of 20702308900441 is 4549979.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 457672545225 + 20244636355216 = 676515^2 + 4499404^2 .

It is not a de Polignac number, because 20702308900441 - 2¹ = 20702308900439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20702308900394 and 20702308900403.

It is not an unprimeable number, because it can be changed into a prime (20702308900421) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3089432391 + ... + 3089439091.

Almost surely, 2^{20702308900441} is an apocalyptic number.

20702308900441 is the 4549979-th square number.

20702308900441 is the 2274990-th centered octagonal number.

It is an amenable number.

20702308900441 is a deficient number, since it is larger than the sum of its proper divisors (3634431005156).

20702308900441 is an frugal number, since it uses more digits than its factorization.

20702308900441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13610 (or 6805 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 20702308900441 in words is "twenty trillion, seven hundred two billion, three hundred eight million, nine hundred thousand, four hundred forty-one".