16557007363603 has 16 divisors (see below), whose sum is σ = 19595372976576. Its totient is φ = 13695690752640.

The previous prime is 16557007363601. The next prime is 16557007363619. The reversal of 16557007363603 is 30636370075561.

It is a cyclic number.

It is not a de Polignac number, because 16557007363603 - 2¹ = 16557007363601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16557007363601) 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, 365781076 + ... + 365826337.

It is an arithmetic number, because the mean of its divisors is an integer number (1224710811036).

Almost surely, 2^{16557007363603} is an apocalyptic number.

16557007363603 is a deficient number, since it is larger than the sum of its proper divisors (3038365612973).

16557007363603 is an equidigital number, since it uses as much as digits as its factorization.

16557007363603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731607534.

The product of its (nonzero) digits is 7144200, while the sum is 52.

The spelling of 16557007363603 in words is "sixteen trillion, five hundred fifty-seven billion, seven million, three hundred sixty-three thousand, six hundred three".