201645568480403 has 32 divisors (see below), whose sum is σ = 219138921529920. Its totient is φ = 184796215971840.

The previous prime is 201645568480379. The next prime is 201645568480427. The reversal of 201645568480403 is 304084865546102.

It is an interprime number because it is at equal distance from previous prime (201645568480379) and next prime (201645568480427).

It is a cyclic number.

It is not a de Polignac number, because 201645568480403 - 2⁴² = 197247521969299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201645568480463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 942280925 + ... + 942494897.

It is an arithmetic number, because the mean of its divisors is an integer number (6848091297810).

Almost surely, 2^{201645568480403} is an apocalyptic number.

201645568480403 is a deficient number, since it is larger than the sum of its proper divisors (17493353049517).

201645568480403 is a wasteful number, since it uses less digits than its factorization.

201645568480403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216647.

The product of its (nonzero) digits is 22118400, while the sum is 56.

The spelling of 201645568480403 in words is "two hundred one trillion, six hundred forty-five billion, five hundred sixty-eight million, four hundred eighty thousand, four hundred three".