20655660052 has 12 divisors (see below), whose sum is σ = 36553556340. Its totient is φ = 10211786816.

The previous prime is 20655660049. The next prime is 20655660061. The reversal of 20655660052 is 25006655602.

It can be written as a sum of positive squares in 2 ways, for example, as 1651934736 + 19003725316 = 40644^2 + 137854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20655659993 and 20655660020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29010403 + ... + 29011114.

It is an arithmetic number, because the mean of its divisors is an integer number (3046129695).

Almost surely, 2^20655660052 is an apocalyptic number.

It is an amenable number.

20655660052 is a deficient number, since it is larger than the sum of its proper divisors (15897896288).

20655660052 is a wasteful number, since it uses less digits than its factorization.

20655660052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58021610 (or 58021608 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 20655660052 in words is "twenty billion, six hundred fifty-five million, six hundred sixty thousand, fifty-two".