20598529652 has 6 divisors (see below), whose sum is σ = 36047426898. Its totient is φ = 10299264824.

The previous prime is 20598529631. The next prime is 20598529747. The reversal of 20598529652 is 25692589502.

It can be written as a sum of positive squares in only one way, i.e., 15564059536 + 5034470116 = 124756^2 + 70954^2 .

It is a super-2 number, since 2×20598529652² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20598529594 and 20598529603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2574816203 + ... + 2574816210.

It is an arithmetic number, because the mean of its divisors is an integer number (6007904483).

Almost surely, 2^20598529652 is an apocalyptic number.

It is an amenable number.

20598529652 is a deficient number, since it is larger than the sum of its proper divisors (15448897246).

20598529652 is a wasteful number, since it uses less digits than its factorization.

20598529652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149632417 (or 5149632415 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 20598529652 in words is "twenty billion, five hundred ninety-eight million, five hundred twenty-nine thousand, six hundred fifty-two".