20650636324 has 12 divisors (see below), whose sum is σ = 38040646000. Its totient is φ = 9781880328.

The previous prime is 20650636297. The next prime is 20650636339. The reversal of 20650636324 is 42363605602.

It is a super-2 number, since 2×20650636324² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135859374 + ... + 135859525.

Almost surely, 2^20650636324 is an apocalyptic number.

It is an amenable number.

20650636324 is a deficient number, since it is larger than the sum of its proper divisors (17390009676).

20650636324 is a wasteful number, since it uses less digits than its factorization.

20650636324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271718922 (or 271718920 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 20650636324 in words is "twenty billion, six hundred fifty million, six hundred thirty-six thousand, three hundred twenty-four".