1616996911 has 2 divisors, whose sum is σ = 1616996912. Its totient is φ = 1616996910.

The previous prime is 1616996873. The next prime is 1616996951. The reversal of 1616996911 is 1196996161.

It is a weak prime.

It is an emirp because it is prime and its reverse (1196996161) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1169669191 and 1919669611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616996911 is a prime.

It is a super-2 number, since 2×1616996911² = 5229358020367083842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616996951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808498455 + 808498456.

It is an arithmetic number, because the mean of its divisors is an integer number (808498456).

Almost surely, 2^1616996911 is an apocalyptic number.

1616996911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616996911 is an equidigital number, since it uses as much as digits as its factorization.

1616996911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 49.

The square root of 1616996911 is about 40211.9001167565. The cubic root of 1616996911 is about 1173.7341214783.

The spelling of 1616996911 in words is "one billion, six hundred sixteen million, nine hundred ninety-six thousand, nine hundred eleven".