20004533146 has 32 divisors (see below), whose sum is σ = 33222591360. Its totient is φ = 8974069056.

The previous prime is 20004533069. The next prime is 20004533147. The reversal of 20004533146 is 64133540002.

It is not an unprimeable number, because it can be changed into a prime (20004533147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970075 + ... + 990481.

It is an arithmetic number, because the mean of its divisors is an integer number (1038205980).

Almost surely, 2^20004533146 is an apocalyptic number.

20004533146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20004533146 is a deficient number, since it is larger than the sum of its proper divisors (13218058214).

20004533146 is a wasteful number, since it uses less digits than its factorization.

20004533146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21478.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 20004533146 in words is "twenty billion, four million, five hundred thirty-three thousand, one hundred forty-six".