1115016161 has 16 divisors (see below), whose sum is σ = 1305292800. Its totient is φ = 932722128.

The previous prime is 1115016151. The next prime is 1115016167. The reversal of 1115016161 is 1616105111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1115016161 - 2²² = 1110821857 is a prime.

It is a super-2 number, since 2×1115016161² = 2486522078582355842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115016167) 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, 47696 + ... + 67118.

It is an arithmetic number, because the mean of its divisors is an integer number (81580800).

Almost surely, 2^1115016161 is an apocalyptic number.

It is an amenable number.

1115016161 is a deficient number, since it is larger than the sum of its proper divisors (190276639).

1115016161 is a wasteful number, since it uses less digits than its factorization.

1115016161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628.

The product of its (nonzero) digits is 180, while the sum is 23.

The square root of 1115016161 is about 33391.8577051352. The cubic root of 1115016161 is about 1036.9561397112.

The spelling of 1115016161 in words is "one billion, one hundred fifteen million, sixteen thousand, one hundred sixty-one".