4660505561 has 4 divisors (see below), whose sum is σ = 4661826000. Its totient is φ = 4659185124.

The previous prime is 4660505543. The next prime is 4660505587. The reversal of 4660505561 is 1655050664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4660505561 - 2¹⁴ = 4660489177 is a prime.

It is a super-2 number, since 2×4660505561² = 43440624168223849442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4660501561) 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, 654911 + ... + 661988.

It is an arithmetic number, because the mean of its divisors is an integer number (1165456500).

Almost surely, 2^4660505561 is an apocalyptic number.

It is an amenable number.

4660505561 is a deficient number, since it is larger than the sum of its proper divisors (1320439).

4660505561 is a wasteful number, since it uses less digits than its factorization.

4660505561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320438.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 4660505561 is about 68267.8955366283. The cubic root of 4660505561 is about 1670.3635721021.

The spelling of 4660505561 in words is "four billion, six hundred sixty million, five hundred five thousand, five hundred sixty-one".