20666152602012 has 24 divisors (see below), whose sum is σ = 48940739497216. Its totient is φ = 6785900854128.

The previous prime is 20666152601993. The next prime is 20666152602037. The reversal of 20666152602012 is 21020625166602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12852084148 + ... + 12852085755.

Almost surely, 2^{20666152602012} is an apocalyptic number.

It is an amenable number.

20666152602012 is an abundant number, since it is smaller than the sum of its proper divisors (28274586895204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20666152602012 is a wasteful number, since it uses less digits than its factorization.

20666152602012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25704169977 (or 25704169975 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 20666152602012 its reverse (21020625166602), we get a palindrome (41686777768614).

The spelling of 20666152602012 in words is "twenty trillion, six hundred sixty-six billion, one hundred fifty-two million, six hundred two thousand, twelve".