20566072102 has 8 divisors (see below), whose sum is σ = 30853240056. Its totient is φ = 10281658752.

The previous prime is 20566072097. The next prime is 20566072117. The reversal of 20566072102 is 20127066502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 669883 + ... + 699910.

It is an arithmetic number, because the mean of its divisors is an integer number (3856655007).

Almost surely, 2^20566072102 is an apocalyptic number.

20566072102 is a deficient number, since it is larger than the sum of its proper divisors (10287167954).

20566072102 is a wasteful number, since it uses less digits than its factorization.

20566072102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377302.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 20566072102 in words is "twenty billion, five hundred sixty-six million, seventy-two thousand, one hundred two".