21476554226 has 16 divisors (see below), whose sum is σ = 32623582464. Its totient is φ = 10602750144.

The previous prime is 21476554193. The next prime is 21476554237. The reversal of 21476554226 is 62245567412.

It is a super-2 number, since 2×21476554226² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121226 + ... + 240101.

It is an arithmetic number, because the mean of its divisors is an integer number (2038973904).

Almost surely, 2^21476554226 is an apocalyptic number.

21476554226 is a deficient number, since it is larger than the sum of its proper divisors (11147028238).

21476554226 is a wasteful number, since it uses less digits than its factorization.

21476554226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361705.

The product of its digits is 806400, while the sum is 44.

The spelling of 21476554226 in words is "twenty-one billion, four hundred seventy-six million, five hundred fifty-four thousand, two hundred twenty-six".