1105550999977 has 2 divisors, whose sum is σ = 1105550999978. Its totient is φ = 1105550999976.

The previous prime is 1105550999957. The next prime is 1105550999999. The reversal of 1105550999977 is 7799990555011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828507730176 + 277043269801 = 910224^2 + 526349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105550999977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1105550999957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552775499988 + 552775499989.

It is an arithmetic number, because the mean of its divisors is an integer number (552775499989).

Almost surely, 2^{1105550999977} is an apocalyptic number.

It is an amenable number.

1105550999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105550999977 is an equidigital number, since it uses as much as digits as its factorization.

1105550999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40186125, while the sum is 67.

The spelling of 1105550999977 in words is "one trillion, one hundred five billion, five hundred fifty million, nine hundred ninety-nine thousand, nine hundred seventy-seven".