20425333546 has 32 divisors (see below), whose sum is σ = 31456512000. Its totient is φ = 9943440192.

The previous prime is 20425333531. The next prime is 20425333549. The reversal of 20425333546 is 64533352402.

It is not an unprimeable number, because it can be changed into a prime (20425333549) 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, 16618860 + ... + 16620088.

It is an arithmetic number, because the mean of its divisors is an integer number (983016000).

Almost surely, 2^20425333546 is an apocalyptic number.

20425333546 is a deficient number, since it is larger than the sum of its proper divisors (11031178454).

20425333546 is a wasteful number, since it uses less digits than its factorization.

20425333546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 20425333546 its reverse (64533352402), we get a palindrome (84958685948).

The spelling of 20425333546 in words is "twenty billion, four hundred twenty-five million, three hundred thirty-three thousand, five hundred forty-six".