646230068071 has 4 divisors (see below), whose sum is σ = 738548649232. Its totient is φ = 553911486912.

The previous prime is 646230068069. The next prime is 646230068101. The reversal of 646230068071 is 170860032646.

646230068071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170860032646 = 2 ⋅85430016323.

It is not a de Polignac number, because 646230068071 - 2¹ = 646230068069 is a prime.

It is a super-2 number, since 2×646230068071² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646230068171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46159290570 + ... + 46159290583.

It is an arithmetic number, because the mean of its divisors is an integer number (184637162308).

Almost surely, 2^646230068071 is an apocalyptic number.

646230068071 is a deficient number, since it is larger than the sum of its proper divisors (92318581161).

646230068071 is an equidigital number, since it uses as much as digits as its factorization.

646230068071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92318581160.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 646230068071 in words is "six hundred forty-six billion, two hundred thirty million, sixty-eight thousand, seventy-one".