4340536661 has 4 divisors (see below), whose sum is σ = 4343869152. Its totient is φ = 4337204172.

The previous prime is 4340536639. The next prime is 4340536663. The reversal of 4340536661 is 1666350434.

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 4340536661 - 2¹⁰ = 4340535637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4340536663) 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, 1664291 + ... + 1666896.

It is an arithmetic number, because the mean of its divisors is an integer number (1085967288).

Almost surely, 2^4340536661 is an apocalyptic number.

It is an amenable number.

4340536661 is a deficient number, since it is larger than the sum of its proper divisors (3332491).

4340536661 is a wasteful number, since it uses less digits than its factorization.

4340536661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332490.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 4340536661 is about 65882.7493430564. The cubic root of 4340536661 is about 1631.2272816358.

The spelling of 4340536661 in words is "four billion, three hundred forty million, five hundred thirty-six thousand, six hundred sixty-one".