1109967555677 has 2 divisors, whose sum is σ = 1109967555678. Its totient is φ = 1109967555676.

The previous prime is 1109967555559. The next prime is 1109967555701. The reversal of 1109967555677 is 7765557699011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091995740196 + 17971815481 = 1044986^2 + 134059^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109967555677 - 2¹⁴ = 1109967539293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109967555077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554983777838 + 554983777839.

It is an arithmetic number, because the mean of its divisors is an integer number (554983777839).

Almost surely, 2^{1109967555677} is an apocalyptic number.

It is an amenable number.

1109967555677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109967555677 is an equidigital number, since it uses as much as digits as its factorization.

1109967555677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125023500, while the sum is 68.

The spelling of 1109967555677 in words is "one trillion, one hundred nine billion, nine hundred sixty-seven million, five hundred fifty-five thousand, six hundred seventy-seven".