5561011012 has 18 divisors (see below), whose sum is σ = 10055830974. Its totient is φ = 2690809920.

The previous prime is 5561011007. The next prime is 5561011019. The reversal of 5561011012 is 2101101655.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4213827396 + 1347183616 = 64914^2 + 36704^2 .

It is not an unprimeable number, because it can be changed into a prime (5561011019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719493 + ... + 727180.

Almost surely, 2^5561011012 is an apocalyptic number.

It is an amenable number.

5561011012 is a deficient number, since it is larger than the sum of its proper divisors (4494819962).

5561011012 is a wasteful number, since it uses less digits than its factorization.

5561011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446739 (or 1446706 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 5561011012 is about 74572.1865845437. The cubic root of 5561011012 is about 1771.6771544007.

Adding to 5561011012 its reverse (2101101655), we get a palindrome (7662112667).

The spelling of 5561011012 in words is "five billion, five hundred sixty-one million, eleven thousand, twelve".