16418807277451 has 2 divisors, whose sum is σ = 16418807277452. Its totient is φ = 16418807277450.

The previous prime is 16418807277437. The next prime is 16418807277473. The reversal of 16418807277451 is 15477270881461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16418807277451 - 2⁵ = 16418807277419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16418807277451.

It is not a weakly prime, because it can be changed into another prime (16418807277251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8209403638725 + 8209403638726.

It is an arithmetic number, because the mean of its divisors is an integer number (8209403638726).

Almost surely, 2^{16418807277451} is an apocalyptic number.

16418807277451 is a deficient number, since it is larger than the sum of its proper divisors (1).

16418807277451 is an equidigital number, since it uses as much as digits as its factorization.

16418807277451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21073920, while the sum is 61.

The spelling of 16418807277451 in words is "sixteen trillion, four hundred eighteen billion, eight hundred seven million, two hundred seventy-seven thousand, four hundred fifty-one".