20066111552 has 28 divisors (see below), whose sum is σ = 39852386640. Its totient is φ = 10024565376.

The previous prime is 20066111537. The next prime is 20066111561. The reversal of 20066111552 is 25511166002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56102 + ... + 208037.

Almost surely, 2^20066111552 is an apocalyptic number.

It is an amenable number.

20066111552 is a deficient number, since it is larger than the sum of its proper divisors (19786275088).

20066111552 is a wasteful number, since it uses less digits than its factorization.

20066111552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265338 (or 265328 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 20066111552 its reverse (25511166002), we get a palindrome (45577277554).

The spelling of 20066111552 in words is "twenty billion, sixty-six million, one hundred eleven thousand, five hundred fifty-two".