6466351601 has 4 divisors (see below), whose sum is σ = 6473933172. Its totient is φ = 6458770032.

The previous prime is 6466351579. The next prime is 6466351609. The reversal of 6466351601 is 1061536646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3654807025 + 2811544576 = 60455^2 + 53024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6466351601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6466351609) 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, 3789506 + ... + 3791211.

It is an arithmetic number, because the mean of its divisors is an integer number (1618483293).

Almost surely, 2^6466351601 is an apocalyptic number.

It is an amenable number.

6466351601 is a deficient number, since it is larger than the sum of its proper divisors (7581571).

6466351601 is an equidigital number, since it uses as much as digits as its factorization.

6466351601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581570.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 6466351601 is about 80413.6282044281. The cubic root of 6466351601 is about 1863.0296715300.

The spelling of 6466351601 in words is "six billion, four hundred sixty-six million, three hundred fifty-one thousand, six hundred one".