6650321601 has 24 divisors (see below), whose sum is σ = 11252494944. Its totient is φ = 3454711680.

The previous prime is 6650321569. The next prime is 6650321603. The reversal of 6650321601 is 1061230566.

It is not a de Polignac number, because 6650321601 - 2⁵ = 6650321569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6650321603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2054760 + ... + 2057993.

It is an arithmetic number, because the mean of its divisors is an integer number (468853956).

Almost surely, 2^6650321601 is an apocalyptic number.

It is an amenable number.

6650321601 is a deficient number, since it is larger than the sum of its proper divisors (4602173343).

6650321601 is a wasteful number, since it uses less digits than its factorization.

6650321601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112781 (or 4112774 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6650321601 is about 81549.5039899079. The cubic root of 6650321601 is about 1880.5326694369.

The spelling of 6650321601 in words is "six billion, six hundred fifty million, three hundred twenty-one thousand, six hundred one".