20815082246 has 32 divisors (see below), whose sum is σ = 36866949120. Its totient is φ = 8625276000.

The previous prime is 20815082243. The next prime is 20815082257. The reversal of 20815082246 is 64228051802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20815082243) 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, 478700 + ... + 520368.

It is an arithmetic number, because the mean of its divisors is an integer number (1152092160).

Almost surely, 2^20815082246 is an apocalyptic number.

20815082246 is a deficient number, since it is larger than the sum of its proper divisors (16051866874).

20815082246 is a wasteful number, since it uses less digits than its factorization.

20815082246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42860.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 20815082246 in words is "twenty billion, eight hundred fifteen million, eighty-two thousand, two hundred forty-six".