20682728158 has 8 divisors (see below), whose sum is σ = 31325297328. Its totient is φ = 10240962384.

The previous prime is 20682728153. The next prime is 20682728177. The reversal of 20682728158 is 85182728602.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20682728153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50200591 + ... + 50201002.

It is an arithmetic number, because the mean of its divisors is an integer number (3915662166).

Almost surely, 2^20682728158 is an apocalyptic number.

20682728158 is a deficient number, since it is larger than the sum of its proper divisors (10642569170).

20682728158 is a wasteful number, since it uses less digits than its factorization.

20682728158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100401698.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 20682728158 in words is "twenty billion, six hundred eighty-two million, seven hundred twenty-eight thousand, one hundred fifty-eight".