20054220460 has 48 divisors (see below), whose sum is σ = 43112916000. Its totient is φ = 7831563264.

The previous prime is 20054220451. The next prime is 20054220479. The reversal of 20054220460 is 6402245002.

It is a super-2 number, since 2×20054220460² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2652766 + ... + 2660314.

It is an arithmetic number, because the mean of its divisors is an integer number (898185750).

Almost surely, 2^20054220460 is an apocalyptic number.

20054220460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054220460 is an abundant number, since it is smaller than the sum of its proper divisors (23058695540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20054220460 is a wasteful number, since it uses less digits than its factorization.

20054220460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690 (or 10688 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20054220460 its reverse (6402245002), we get a palindrome (26456465462).

The spelling of 20054220460 in words is "twenty billion, fifty-four million, two hundred twenty thousand, four hundred sixty".