1116651505 has 4 divisors (see below), whose sum is σ = 1339981812. Its totient is φ = 893321200.

The previous prime is 1116651479. The next prime is 1116651533. The reversal of 1116651505 is 5051566111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5051566111 = 39317 ⋅128483.

It can be written as a sum of positive squares in 2 ways, for example, as 551686144 + 564965361 = 23488^2 + 23769^2 .

It is not a de Polignac number, because 1116651505 - 2⁹ = 1116650993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111665146 + ... + 111665155.

It is an arithmetic number, because the mean of its divisors is an integer number (334995453).

Almost surely, 2^1116651505 is an apocalyptic number.

It is an amenable number.

1116651505 is a deficient number, since it is larger than the sum of its proper divisors (223330307).

1116651505 is an equidigital number, since it uses as much as digits as its factorization.

1116651505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223330306.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1116651505 is about 33416.3359002749. The cubic root of 1116651505 is about 1037.4628443654.

The spelling of 1116651505 in words is "one billion, one hundred sixteen million, six hundred fifty-one thousand, five hundred five".