555561228945 has 8 divisors (see below), whose sum is σ = 888897966336. Its totient is φ = 296299322096.

The previous prime is 555561228883. The next prime is 555561228949. The reversal of 555561228945 is 549822165555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 555561228945 - 2⁶ = 555561228881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (555561228949) 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, 18518707617 + ... + 18518707646.

It is an arithmetic number, because the mean of its divisors is an integer number (111112245792).

Almost surely, 2^555561228945 is an apocalyptic number.

It is an amenable number.

555561228945 is a deficient number, since it is larger than the sum of its proper divisors (333336737391).

555561228945 is a wasteful number, since it uses less digits than its factorization.

555561228945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037415271.

The product of its digits is 21600000, while the sum is 57.

The spelling of 555561228945 in words is "five hundred fifty-five billion, five hundred sixty-one million, two hundred twenty-eight thousand, nine hundred forty-five".