4664064561 has 16 divisors (see below), whose sum is σ = 6713125440. Its totient is φ = 2863333440.

The previous prime is 4664064523. The next prime is 4664064569. The reversal of 4664064561 is 1654604664.

It is not a de Polignac number, because 4664064561 - 2⁶ = 4664064497 is a prime.

It is a super-2 number, since 2×4664064561² = 43506996458352245442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4664064569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126370 + ... + 159051.

It is an arithmetic number, because the mean of its divisors is an integer number (419570340).

Almost surely, 2^4664064561 is an apocalyptic number.

It is an amenable number.

4664064561 is a deficient number, since it is larger than the sum of its proper divisors (2049060879).

4664064561 is a wasteful number, since it uses less digits than its factorization.

4664064561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285856.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 4664064561 is about 68293.9569874231. The cubic root of 4664064561 is about 1670.7886555514.

The spelling of 4664064561 in words is "four billion, six hundred sixty-four million, sixty-four thousand, five hundred sixty-one".