21470147016611 has 2 divisors, whose sum is σ = 21470147016612. Its totient is φ = 21470147016610.

The previous prime is 21470147016601. The next prime is 21470147016671. The reversal of 21470147016611 is 11661074107412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21470147016611 - 2¹⁰ = 21470147015587 is a prime.

It is not a weakly prime, because it can be changed into another prime (21470147016601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10735073508305 + 10735073508306.

It is an arithmetic number, because the mean of its divisors is an integer number (10735073508306).

Almost surely, 2^{21470147016611} is an apocalyptic number.

21470147016611 is a deficient number, since it is larger than the sum of its proper divisors (1).

21470147016611 is an equidigital number, since it uses as much as digits as its factorization.

21470147016611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 21470147016611 in words is "twenty-one trillion, four hundred seventy billion, one hundred forty-seven million, sixteen thousand, six hundred eleven".