1663154352406 has 16 divisors (see below), whose sum is σ = 2497070539440. Its totient is φ = 830797862400.

The previous prime is 1663154352383. The next prime is 1663154352413. The reversal of 1663154352406 is 6042534513661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9483625 + ... + 9657403.

It is an arithmetic number, because the mean of its divisors is an integer number (156066908715).

Almost surely, 2^{1663154352406} is an apocalyptic number.

1663154352406 is a deficient number, since it is larger than the sum of its proper divisors (833916187034).

1663154352406 is a wasteful number, since it uses less digits than its factorization.

1663154352406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178239.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 1663154352406 in words is "one trillion, six hundred sixty-three billion, one hundred fifty-four million, three hundred fifty-two thousand, four hundred six".