643115600603 has 32 divisors (see below), whose sum is σ = 769712824320. Its totient is φ = 525834737280.

The previous prime is 643115600593. The next prime is 643115600653. The reversal of 643115600603 is 306006511346.

It is a cyclic number.

It is not a de Polignac number, because 643115600603 - 2⁴ = 643115600587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (643115600653) 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 31 ways as a sum of consecutive naturals, for example, 5643398 + ... + 5756228.

It is an arithmetic number, because the mean of its divisors is an integer number (24053525760).

Almost surely, 2^643115600603 is an apocalyptic number.

643115600603 is a deficient number, since it is larger than the sum of its proper divisors (126597223717).

643115600603 is a wasteful number, since it uses less digits than its factorization.

643115600603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113307.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 643115600603 in words is "six hundred forty-three billion, one hundred fifteen million, six hundred thousand, six hundred three".