168196803603 has 4 divisors (see below), whose sum is σ = 224262404808. Its totient is φ = 112131202400.

The previous prime is 168196803563. The next prime is 168196803611. The reversal of 168196803603 is 306308691861.

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 168196803603 - 2¹³ = 168196795411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168196803613) 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, 28032800598 + ... + 28032800603.

It is an arithmetic number, because the mean of its divisors is an integer number (56065601202).

Almost surely, 2^168196803603 is an apocalyptic number.

168196803603 is a deficient number, since it is larger than the sum of its proper divisors (56065601205).

168196803603 is an equidigital number, since it uses as much as digits as its factorization.

168196803603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56065601204.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 168196803603 in words is "one hundred sixty-eight billion, one hundred ninety-six million, eight hundred three thousand, six hundred three".