20651066652050 has 24 divisors (see below), whose sum is σ = 38411296614912. Its totient is φ = 8260359426000.

The previous prime is 20651066652037. The next prime is 20651066652053. The reversal of 20651066652050 is 5025666015602.

It is a junction number, because it is equal to n+sod(n) for n = 20651066651992 and 20651066652010.

It is not an unprimeable number, because it can be changed into a prime (20651066652053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4768535 + ... + 8002565.

It is an arithmetic number, because the mean of its divisors is an integer number (1600470692288).

Almost surely, 2^{20651066652050} is an apocalyptic number.

20651066652050 is a deficient number, since it is larger than the sum of its proper divisors (17760229962862).

20651066652050 is a wasteful number, since it uses less digits than its factorization.

20651066652050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361754 (or 3361749 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 20651066652050 in words is "twenty trillion, six hundred fifty-one billion, sixty-six million, six hundred fifty-two thousand, fifty".