1016891211 has 16 divisors (see below), whose sum is σ = 1552207104. Its totient is φ = 580083744.

The previous prime is 1016891207. The next prime is 1016891221. The reversal of 1016891211 is 1121986101.

It is a happy number.

It is not a de Polignac number, because 1016891211 - 2² = 1016891207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1016891221) 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, 28920 + ... + 53573.

It is an arithmetic number, because the mean of its divisors is an integer number (97012944).

Almost surely, 2^1016891211 is an apocalyptic number.

1016891211 is a deficient number, since it is larger than the sum of its proper divisors (535315893).

1016891211 is an equidigital number, since it uses as much as digits as its factorization.

1016891211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83090.

The product of its (nonzero) digits is 864, while the sum is 30.

The square root of 1016891211 is about 31888.7317245450. The cubic root of 1016891211 is about 1005.5989963988.

The spelling of 1016891211 in words is "one billion, sixteen million, eight hundred ninety-one thousand, two hundred eleven".