1117557065 has 16 divisors (see below), whose sum is σ = 1378958592. Its totient is φ = 868843584.

The previous prime is 1117557061. The next prime is 1117557121. The reversal of 1117557065 is 5607557111.

1117557065 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1117557065 - 2² = 1117557061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1117557061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175772 + ... + 182018.

It is an arithmetic number, because the mean of its divisors is an integer number (86184912).

Almost surely, 2^1117557065 is an apocalyptic number.

It is an amenable number.

1117557065 is a deficient number, since it is larger than the sum of its proper divisors (261401527).

1117557065 is an equidigital number, since it uses as much as digits as its factorization.

1117557065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7256.

The product of its (nonzero) digits is 36750, while the sum is 38.

The square root of 1117557065 is about 33429.8828146316. The cubic root of 1117557065 is about 1037.7432156367.

The spelling of 1117557065 in words is "one billion, one hundred seventeen million, five hundred fifty-seven thousand, sixty-five".