1116556573 has 8 divisors (see below), whose sum is σ = 1219912416. Its totient is φ = 1013509200.

The previous prime is 1116556561. The next prime is 1116556577. The reversal of 1116556573 is 3756556111.

It is a happy number.

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

It is not a de Polignac number, because 1116556573 - 2¹⁷ = 1116425501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116556577) 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, 69511 + ... + 84052.

It is an arithmetic number, because the mean of its divisors is an integer number (152489052).

Almost surely, 2^1116556573 is an apocalyptic number.

It is an amenable number.

1116556573 is a deficient number, since it is larger than the sum of its proper divisors (103355843).

1116556573 is a wasteful number, since it uses less digits than its factorization.

1116556573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154235.

The product of its digits is 94500, while the sum is 40.

The square root of 1116556573 is about 33414.9154270963. The cubic root of 1116556573 is about 1037.4334436039.

The spelling of 1116556573 in words is "one billion, one hundred sixteen million, five hundred fifty-six thousand, five hundred seventy-three".