16451506620067 has 2 divisors, whose sum is σ = 16451506620068. Its totient is φ = 16451506620066.

The previous prime is 16451506620037. The next prime is 16451506620103. The reversal of 16451506620067 is 76002660515461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16451506620067 - 2⁴³ = 7655413597859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16451506620067.

It is not a weakly prime, because it can be changed into another prime (16451506620037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8225753310033 + 8225753310034.

It is an arithmetic number, because the mean of its divisors is an integer number (8225753310034).

Almost surely, 2^{16451506620067} is an apocalyptic number.

16451506620067 is a deficient number, since it is larger than the sum of its proper divisors (1).

16451506620067 is an equidigital number, since it uses as much as digits as its factorization.

16451506620067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 16451506620067 in words is "sixteen trillion, four hundred fifty-one billion, five hundred six million, six hundred twenty thousand, sixty-seven".