20004533156 has 24 divisors (see below), whose sum is σ = 35612952480. Its totient is φ = 9829515200.

The previous prime is 20004533147. The next prime is 20004533179. The reversal of 20004533156 is 65133540002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 811736 + ... + 836016.

It is an arithmetic number, because the mean of its divisors is an integer number (1483873020).

Almost surely, 2^20004533156 is an apocalyptic number.

It is an amenable number.

20004533156 is a deficient number, since it is larger than the sum of its proper divisors (15608419324).

20004533156 is a wasteful number, since it uses less digits than its factorization.

20004533156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27835 (or 27833 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 20004533156 in words is "twenty billion, four million, five hundred thirty-three thousand, one hundred fifty-six".