16541321653147 has 2 divisors, whose sum is σ = 16541321653148. Its totient is φ = 16541321653146.

The previous prime is 16541321653133. The next prime is 16541321653217. The reversal of 16541321653147 is 74135612314561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16541321653147 - 2¹⁹ = 16541321128859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16541321653147.

It is not a weakly prime, because it can be changed into another prime (16541321653127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270660826573 + 8270660826574.

It is an arithmetic number, because the mean of its divisors is an integer number (8270660826574).

Almost surely, 2^{16541321653147} is an apocalyptic number.

16541321653147 is a deficient number, since it is larger than the sum of its proper divisors (1).

16541321653147 is an equidigital number, since it uses as much as digits as its factorization.

16541321653147 is an evil number, because the sum of its binary digits is even.

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

The spelling of 16541321653147 in words is "sixteen trillion, five hundred forty-one billion, three hundred twenty-one million, six hundred fifty-three thousand, one hundred forty-seven".