20531614122336 has 24 divisors (see below), whose sum is σ = 53895487071384. Its totient is φ = 6843871374080.

The previous prime is 20531614122323. The next prime is 20531614122337. The reversal of 20531614122336 is 63322141613502.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 20531614122294 and 20531614122303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531614122337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106935490125 + ... + 106935490316.

It is an arithmetic number, because the mean of its divisors is an integer number (2245645294641).

Almost surely, 2^{20531614122336} is an apocalyptic number.

It is an amenable number.

20531614122336 is an abundant number, since it is smaller than the sum of its proper divisors (33363872949048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20531614122336 is a wasteful number, since it uses less digits than its factorization.

20531614122336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213870980454 (or 213870980446 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 20531614122336 its reverse (63322141613502), we get a palindrome (83853755735838).

The spelling of 20531614122336 in words is "twenty trillion, five hundred thirty-one billion, six hundred fourteen million, one hundred twenty-two thousand, three hundred thirty-six".