654164215843 has 2 divisors, whose sum is σ = 654164215844. Its totient is φ = 654164215842.

The previous prime is 654164215823. The next prime is 654164215889. The reversal of 654164215843 is 348512461456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654164215843 - 2³⁷ = 516725262371 is a prime.

It is not a weakly prime, because it can be changed into another prime (654164215823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327082107921 + 327082107922.

It is an arithmetic number, because the mean of its divisors is an integer number (327082107922).

Almost surely, 2^654164215843 is an apocalyptic number.

654164215843 is a deficient number, since it is larger than the sum of its proper divisors (1).

654164215843 is an equidigital number, since it uses as much as digits as its factorization.

654164215843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2764800, while the sum is 49.

The spelling of 654164215843 in words is "six hundred fifty-four billion, one hundred sixty-four million, two hundred fifteen thousand, eight hundred forty-three".