20607554236 has 6 divisors (see below), whose sum is σ = 36063219920. Its totient is φ = 10303777116.

The previous prime is 20607554189. The next prime is 20607554239. The reversal of 20607554236 is 63245570602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607554239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575944276 + ... + 2575944283.

Almost surely, 2^20607554236 is an apocalyptic number.

It is an amenable number.

20607554236 is a deficient number, since it is larger than the sum of its proper divisors (15455665684).

20607554236 is a wasteful number, since it uses less digits than its factorization.

20607554236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151888563 (or 5151888561 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 20607554236 in words is "twenty billion, six hundred seven million, five hundred fifty-four thousand, two hundred thirty-six".