20652077650 has 24 divisors (see below), whose sum is σ = 39042589284. Its totient is φ = 8125406400.

The previous prime is 20652077627. The next prime is 20652077653. The reversal of 20652077650 is 5677025602.

It can be written as a sum of positive squares in 6 ways, for example, as 7569522009 + 13082555641 = 87003^2 + 114379^2 .

It is a super-2 number, since 2×20652077650² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20652077653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3382537 + ... + 3388636.

Almost surely, 2^20652077650 is an apocalyptic number.

20652077650 is a deficient number, since it is larger than the sum of its proper divisors (18390511634).

20652077650 is a wasteful number, since it uses less digits than its factorization.

20652077650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771246 (or 6771241 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 20652077650 in words is "twenty billion, six hundred fifty-two million, seventy-seven thousand, six hundred fifty".