20830367568 has 80 divisors (see below), whose sum is σ = 54436605120. Its totient is φ = 6863173632.

The previous prime is 20830367567. The next prime is 20830367587. The reversal of 20830367568 is 86576303802.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830367567) 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 15 ways as a sum of consecutive naturals, for example, 2050630 + ... + 2060762.

It is an arithmetic number, because the mean of its divisors is an integer number (680457564).

Almost surely, 2^20830367568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20830367568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27218302560).

20830367568 is an abundant number, since it is smaller than the sum of its proper divisors (33606237552).

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

20830367568 is a wasteful number, since it uses less digits than its factorization.

20830367568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636 (or 10630 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 20830367568 in words is "twenty billion, eight hundred thirty million, three hundred sixty-seven thousand, five hundred sixty-eight".