16840618363 has 4 divisors (see below), whose sum is σ = 17198929440. Its totient is φ = 16482307288.

The previous prime is 16840618337. The next prime is 16840618397. The reversal of 16840618363 is 36381604861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16840618363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16840618303) 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 3 ways as a sum of consecutive naturals, for example, 179155468 + ... + 179155561.

It is an arithmetic number, because the mean of its divisors is an integer number (4299732360).

Almost surely, 2^16840618363 is an apocalyptic number.

16840618363 is a deficient number, since it is larger than the sum of its proper divisors (358311077).

16840618363 is an equidigital number, since it uses as much as digits as its factorization.

16840618363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358311076.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 16840618363 in words is "sixteen billion, eight hundred forty million, six hundred eighteen thousand, three hundred sixty-three".