10020045556 has 24 divisors (see below), whose sum is σ = 18158999040. Its totient is φ = 4832800800.

The previous prime is 10020045551. The next prime is 10020045569. The reversal of 10020045556 is 65554002001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020045551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91351 + ... + 168478.

It is an arithmetic number, because the mean of its divisors is an integer number (756624960).

Almost surely, 2^10020045556 is an apocalyptic number.

It is an amenable number.

10020045556 is a deficient number, since it is larger than the sum of its proper divisors (8138953484).

10020045556 is a wasteful number, since it uses less digits than its factorization.

10020045556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260175 (or 260173 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 10020045556 its reverse (65554002001), we get a palindrome (75574047557).

The spelling of 10020045556 in words is "ten billion, twenty million, forty-five thousand, five hundred fifty-six".