1664155410063 has 12 divisors (see below), whose sum is σ = 2274312734664. Its totient is φ = 1082377499200.

The previous prime is 1664155410061. The next prime is 1664155410097. The reversal of 1664155410063 is 3600145514661.

It is not a de Polignac number, because 1664155410063 - 2¹ = 1664155410061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1664155409997 and 1664155410024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664155410061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164991528 + ... + 165001613.

It is an arithmetic number, because the mean of its divisors is an integer number (189526061222).

Almost surely, 2^{1664155410063} is an apocalyptic number.

1664155410063 is a deficient number, since it is larger than the sum of its proper divisors (610157324601).

1664155410063 is an equidigital number, since it uses as much as digits as its factorization.

1664155410063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329993226 (or 329993185 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1664155410063 in words is "one trillion, six hundred sixty-four billion, one hundred fifty-five million, four hundred ten thousand, sixty-three".