20302826052646 has 24 divisors (see below), whose sum is σ = 31489576482312. Its totient is φ = 9817313392800.

The previous prime is 20302826052643. The next prime is 20302826052647. The reversal of 20302826052646 is 64625062820302.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20302826052596 and 20302826052605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302826052643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719820 + ... + 6412783.

It is an arithmetic number, because the mean of its divisors is an integer number (1312065686763).

Almost surely, 2^{20302826052646} is an apocalyptic number.

20302826052646 is a deficient number, since it is larger than the sum of its proper divisors (11186750429666).

20302826052646 is a wasteful number, since it uses less digits than its factorization.

20302826052646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134148 (or 7134117 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

Adding to 20302826052646 its reverse (64625062820302), we get a palindrome (84927888872948).

The spelling of 20302826052646 in words is "twenty trillion, three hundred two billion, eight hundred twenty-six million, fifty-two thousand, six hundred forty-six".