21466127552 has 28 divisors (see below), whose sum is σ = 42698563320. Its totient is φ = 10707434496.

The previous prime is 21466127531. The next prime is 21466127563. The reversal of 21466127552 is 25572166412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373433 + ... + 427064.

It is an arithmetic number, because the mean of its divisors is an integer number (1524948690).

Almost surely, 2^21466127552 is an apocalyptic number.

It is an amenable number.

21466127552 is a deficient number, since it is larger than the sum of its proper divisors (21232435768).

21466127552 is an equidigital number, since it uses as much as digits as its factorization.

21466127552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800928 (or 800918 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The spelling of 21466127552 in words is "twenty-one billion, four hundred sixty-six million, one hundred twenty-seven thousand, five hundred fifty-two".