20330487472 has 20 divisors (see below), whose sum is σ = 39507215176. Its totient is φ = 10135077120.

The previous prime is 20330487469. The next prime is 20330487473. The reversal of 20330487472 is 27478403302.

It is not an unprimeable number, because it can be changed into a prime (20330487473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879854 + ... + 1890637.

Almost surely, 2^20330487472 is an apocalyptic number.

It is an amenable number.

20330487472 is a deficient number, since it is larger than the sum of its proper divisors (19176727704).

20330487472 is a wasteful number, since it uses less digits than its factorization.

20330487472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770836 (or 3770830 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 20330487472 in words is "twenty billion, three hundred thirty million, four hundred eighty-seven thousand, four hundred seventy-two".