99303557563 has 16 divisors (see below), whose sum is σ = 125390246400. Its totient is φ = 76627368576.

The previous prime is 99303557543. The next prime is 99303557581. The reversal of 99303557563 is 36575530399.

It is a cyclic number.

It is not a de Polignac number, because 99303557563 - 2⁵ = 99303557531 is a prime.

It is a super-2 number, since 2×99303557563² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99303557543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18138213 + ... + 18143686.

It is an arithmetic number, because the mean of its divisors is an integer number (7836890400).

Almost surely, 2^99303557563 is an apocalyptic number.

99303557563 is a deficient number, since it is larger than the sum of its proper divisors (26086688837).

99303557563 is a wasteful number, since it uses less digits than its factorization.

99303557563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36281946.

The product of its (nonzero) digits is 11481750, while the sum is 55.

The spelling of 99303557563 in words is "ninety-nine billion, three hundred three million, five hundred fifty-seven thousand, five hundred sixty-three".