20480664404 has 12 divisors (see below), whose sum is σ = 35842529184. Its totient is φ = 10239941784.

The previous prime is 20480664377. The next prime is 20480664409. The reversal of 20480664404 is 40446608402.

It is a super-2 number, since 2×20480664404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480664409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42899 + ... + 206885.

It is an arithmetic number, because the mean of its divisors is an integer number (2986877432).

Almost surely, 2^20480664404 is an apocalyptic number.

It is an amenable number.

20480664404 is a deficient number, since it is larger than the sum of its proper divisors (15361864780).

20480664404 is a wasteful number, since it uses less digits than its factorization.

20480664404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195214 (or 195212 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 20480664404 in words is "twenty billion, four hundred eighty million, six hundred sixty-four thousand, four hundred four".