2064640601 has 4 divisors (see below), whose sum is σ = 2087838900. Its totient is φ = 2041442304.

The previous prime is 2064640583. The next prime is 2064640603. The reversal of 2064640601 is 1060464602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1060464602 = 2 ⋅530232301.

It can be written as a sum of positive squares in 2 ways, for example, as 673350601 + 1391290000 = 25949^2 + 37300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2064640601 is a prime.

It is a super-2 number, since 2×2064640601² = 8525481622595282402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064640603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11599016 + ... + 11599193.

It is an arithmetic number, because the mean of its divisors is an integer number (521959725).

Almost surely, 2^2064640601 is an apocalyptic number.

It is an amenable number.

2064640601 is a deficient number, since it is larger than the sum of its proper divisors (23198299).

2064640601 is an equidigital number, since it uses as much as digits as its factorization.

2064640601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23198298.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2064640601 is about 45438.3164410831. The cubic root of 2064640601 is about 1273.3510609372.

The spelling of 2064640601 in words is "two billion, sixty-four million, six hundred forty thousand, six hundred one".