10021044564 has 36 divisors (see below), whose sum is σ = 25920070176. Its totient is φ = 3262665168.

The previous prime is 10021044557. The next prime is 10021044571. The reversal of 10021044564 is 46544012001.

10021044564 is a `hidden beast` number, since 1 + 0 + 0 + 210 + 445 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (10021044557) and next prime (10021044571).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3235224 + ... + 3238319.

Almost surely, 2^10021044564 is an apocalyptic number.

It is an amenable number.

10021044564 is an abundant number, since it is smaller than the sum of its proper divisors (15899025612).

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

10021044564 is a wasteful number, since it uses less digits than its factorization.

10021044564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473596 (or 6473591 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 10021044564 its reverse (46544012001), we get a palindrome (56565056565).

The spelling of 10021044564 in words is "ten billion, twenty-one million, forty-four thousand, five hundred sixty-four".