1255560777766 has 8 divisors (see below), whose sum is σ = 1883345963544. Its totient is φ = 627778789920.

The previous prime is 1255560777733. The next prime is 1255560777773. The reversal of 1255560777766 is 6677770655521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1255560777698 and 1255560777707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932401 + ... + 1838611.

It is an arithmetic number, because the mean of its divisors is an integer number (235418245443).

Almost surely, 2^{1255560777766} is an apocalyptic number.

1255560777766 is a deficient number, since it is larger than the sum of its proper divisors (627785185778).

1255560777766 is an equidigital number, since it uses as much as digits as its factorization.

1255560777766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598966.

The product of its (nonzero) digits is 129654000, while the sum is 64.

The spelling of 1255560777766 in words is "one trillion, two hundred fifty-five billion, five hundred sixty million, seven hundred seventy-seven thousand, seven hundred sixty-six".