1663526066255 has 8 divisors (see below), whose sum is σ = 1996238250000. Its totient is φ = 1330816206016.

The previous prime is 1663526066249. The next prime is 1663526066263. The reversal of 1663526066255 is 5526606253661.

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

It is a cyclic number.

It is not a de Polignac number, because 1663526066255 - 2²² = 1663521871951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1663526066197 and 1663526066206.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2236496 + ... + 2885994.

It is an arithmetic number, because the mean of its divisors is an integer number (249529781250).

Almost surely, 2^{1663526066255} is an apocalyptic number.

1663526066255 is a deficient number, since it is larger than the sum of its proper divisors (332712183745).

1663526066255 is an equidigital number, since it uses as much as digits as its factorization.

1663526066255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161753.

The product of its (nonzero) digits is 11664000, while the sum is 53.

The spelling of 1663526066255 in words is "one trillion, six hundred sixty-three billion, five hundred twenty-six million, sixty-six thousand, two hundred fifty-five".