21556062034 has 16 divisors (see below), whose sum is σ = 34823775168. Its totient is φ = 9948253392.

The previous prime is 21556062013. The next prime is 21556062089. The reversal of 21556062034 is 43026065512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630939 + ... + 664225.

It is an arithmetic number, because the mean of its divisors is an integer number (2176485948).

Almost surely, 2^21556062034 is an apocalyptic number.

21556062034 is a deficient number, since it is larger than the sum of its proper divisors (13267713134).

21556062034 is a wasteful number, since it uses less digits than its factorization.

21556062034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58209.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 21556062034 in words is "twenty-one billion, five hundred fifty-six million, sixty-two thousand, thirty-four".