1109961996667 has 2 divisors, whose sum is σ = 1109961996668. Its totient is φ = 1109961996666.

The previous prime is 1109961996631. The next prime is 1109961996677. The reversal of 1109961996667 is 7666991699011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1109961996667 - 2²³ = 1109953608059 is a prime.

It is a super-3 number, since 3×1109961996667³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1109961996596 and 1109961996605.

It is not a weakly prime, because it can be changed into another prime (1109961996617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554980998333 + 554980998334.

It is an arithmetic number, because the mean of its divisors is an integer number (554980998334).

Almost surely, 2^{1109961996667} is an apocalyptic number.

1109961996667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109961996667 is an equidigital number, since it uses as much as digits as its factorization.

1109961996667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59521392, while the sum is 70.

The spelling of 1109961996667 in words is "one trillion, one hundred nine billion, nine hundred sixty-one million, nine hundred ninety-six thousand, six hundred sixty-seven".