20016666532 has 6 divisors (see below), whose sum is σ = 35029166438. Its totient is φ = 10008333264.

The previous prime is 20016666521. The next prime is 20016666557. The reversal of 20016666532 is 23566661002.

It can be written as a sum of positive squares in only one way, i.e., 11825692516 + 8190974016 = 108746^2 + 90504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20016666491 and 20016666500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502083313 + ... + 2502083320.

Almost surely, 2^20016666532 is an apocalyptic number.

It is an amenable number.

20016666532 is a deficient number, since it is larger than the sum of its proper divisors (15012499906).

20016666532 is a wasteful number, since it uses less digits than its factorization.

20016666532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004166637 (or 5004166635 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 20016666532 in words is "twenty billion, sixteen million, six hundred sixty-six thousand, five hundred thirty-two".