20782662508153 has 128 divisors (see below), whose sum is σ = 26919801667584. Its totient is φ = 15612030720000.

The previous prime is 20782662508147. The next prime is 20782662508189. The reversal of 20782662508153 is 35180526628702.

It is not a de Polignac number, because 20782662508153 - 2¹³ = 20782662499961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20782662508094 and 20782662508103.

It is not an unprimeable number, because it can be changed into a prime (20782662500153) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6392696778 + ... + 6392700028.

It is an arithmetic number, because the mean of its divisors is an integer number (210310950528).

Almost surely, 2^{20782662508153} is an apocalyptic number.

It is an amenable number.

20782662508153 is a deficient number, since it is larger than the sum of its proper divisors (6137139159431).

20782662508153 is a wasteful number, since it uses less digits than its factorization.

20782662508153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 20782662508153 in words is "twenty trillion, seven hundred eighty-two billion, six hundred sixty-two million, five hundred eight thousand, one hundred fifty-three".