1663046656366 has 8 divisors (see below), whose sum is σ = 2517455948040. Its totient is φ = 823894673688.

The previous prime is 1663046656363. The next prime is 1663046656409. The reversal of 1663046656366 is 6636566403661.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1663046656366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663046656361) 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 in 3 ways as a sum of consecutive naturals, for example, 3814326976 + ... + 3814327411.

It is an arithmetic number, because the mean of its divisors is an integer number (314681993505).

Almost surely, 2^{1663046656366} is an apocalyptic number.

1663046656366 is a deficient number, since it is larger than the sum of its proper divisors (854409291674).

1663046656366 is a wasteful number, since it uses less digits than its factorization.

1663046656366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628654498.

The product of its (nonzero) digits is 50388480, while the sum is 58.

The spelling of 1663046656366 in words is "one trillion, six hundred sixty-three billion, forty-six million, six hundred fifty-six thousand, three hundred sixty-six".