20146300556 has 6 divisors (see below), whose sum is σ = 35256025980. Its totient is φ = 10073150276.

The previous prime is 20146300513. The next prime is 20146300583. The reversal of 20146300556 is 65500364102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518287566 + ... + 2518287573.

It is an arithmetic number, because the mean of its divisors is an integer number (5876004330).

Almost surely, 2^20146300556 is an apocalyptic number.

It is an amenable number.

20146300556 is a deficient number, since it is larger than the sum of its proper divisors (15109725424).

20146300556 is a wasteful number, since it uses less digits than its factorization.

20146300556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036575143 (or 5036575141 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 20146300556 its reverse (65500364102), we get a palindrome (85646664658).

The spelling of 20146300556 in words is "twenty billion, one hundred forty-six million, three hundred thousand, five hundred fifty-six".