1151616111 has 8 divisors (see below), whose sum is σ = 1538695680. Its totient is φ = 766140312.

The previous prime is 1151616097. The next prime is 1151616121. The reversal of 1151616111 is 1116161511.

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

It is not a de Polignac number, because 1151616111 - 2⁵ = 1151616079 is a prime.

It is a super-2 number, since 2×1151616111² = 2652439334229528642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151616121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399265 + ... + 402138.

It is an arithmetic number, because the mean of its divisors is an integer number (192336960).

Almost surely, 2^1151616111 is an apocalyptic number.

1151616111 is a deficient number, since it is larger than the sum of its proper divisors (387079569).

1151616111 is an equidigital number, since it uses as much as digits as its factorization.

1151616111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801885.

The product of its digits is 180, while the sum is 24.

The square root of 1151616111 is about 33935.4698066787. The cubic root of 1151616111 is about 1048.1801010207.

Adding to 1151616111 its reverse (1116161511), we get a palindrome (2267777622).

The spelling of 1151616111 in words is "one billion, one hundred fifty-one million, six hundred sixteen thousand, one hundred eleven".