20826942153536 has 14 divisors (see below), whose sum is σ = 41328463336050. Its totient is φ = 10413471076736.

The previous prime is 20826942153497. The next prime is 20826942153539. The reversal of 20826942153536 is 63535124962802.

It can be written as a sum of positive squares in only one way, i.e., 18372882049600 + 2454060103936 = 4286360^2 + 1566544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20826942153539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162710485511 + ... + 162710485638.

Almost surely, 2^{20826942153536} is an apocalyptic number.

It is an amenable number.

20826942153536 is a deficient number, since it is larger than the sum of its proper divisors (20501521182514).

20826942153536 is an equidigital number, since it uses as much as digits as its factorization.

20826942153536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325420971161 (or 325420971151 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 20826942153536 in words is "twenty trillion, eight hundred twenty-six billion, nine hundred forty-two million, one hundred fifty-three thousand, five hundred thirty-six".