1668535200063 has 6 divisors (see below), whose sum is σ = 2410106400104. Its totient is φ = 1112356800036.

The previous prime is 1668535200043. The next prime is 1668535200091. The reversal of 1668535200063 is 3600025358661.

1668535200063 is a `hidden beast` number, since 1 + 6 + 68 + 5 + 3 + 520 + 0 + 0 + 63 = 666.

It is not a de Polignac number, because 1668535200063 - 2¹⁰ = 1668535199039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1668535199991 and 1668535200018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668535200043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92696399995 + ... + 92696400012.

Almost surely, 2^{1668535200063} is an apocalyptic number.

1668535200063 is a deficient number, since it is larger than the sum of its proper divisors (741571200041).

1668535200063 is a wasteful number, since it uses less digits than its factorization.

1668535200063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185392800013 (or 185392800010 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 1668535200063 in words is "one trillion, six hundred sixty-eight billion, five hundred thirty-five million, two hundred thousand, sixty-three".