21466054200 has 48 divisors (see below), whose sum is σ = 66544769880. Its totient is φ = 5724280960.

The previous prime is 21466054189. The next prime is 21466054219. The reversal of 21466054200 is 245066412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17887779 + ... + 17888978.

Almost surely, 2^21466054200 is an apocalyptic number.

21466054200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21466054200 is an abundant number, since it is smaller than the sum of its proper divisors (45078715680).

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

21466054200 is a wasteful number, since it uses less digits than its factorization.

21466054200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35776776 (or 35776767 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 21466054200 in words is "twenty-one billion, four hundred sixty-six million, fifty-four thousand, two hundred".