163604636606363 has 4 divisors (see below), whose sum is σ = 167085586321440. Its totient is φ = 160123686891288.

The previous prime is 163604636606347. The next prime is 163604636606381. The reversal of 163604636606363 is 363606636406361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163604636606363 - 2⁴ = 163604636606347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163604636605363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740474857468 + ... + 1740474857561.

It is an arithmetic number, because the mean of its divisors is an integer number (41771396580360).

Almost surely, 2^{163604636606363} is an apocalyptic number.

163604636606363 is a deficient number, since it is larger than the sum of its proper divisors (3480949715077).

163604636606363 is an equidigital number, since it uses as much as digits as its factorization.

163604636606363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480949715076.

The product of its (nonzero) digits is 90699264, while the sum is 59.

The spelling of 163604636606363 in words is "one hundred sixty-three trillion, six hundred four billion, six hundred thirty-six million, six hundred six thousand, three hundred sixty-three".