4869656661 has 16 divisors (see below), whose sum is σ = 6847715840. Its totient is φ = 3069673200.

The previous prime is 4869656653. The next prime is 4869656663. The reversal of 4869656661 is 1666569684.

It is a happy number.

It is not a de Polignac number, because 4869656661 - 2³ = 4869656653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4869656663) 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, 51865 + ... + 111486.

It is an arithmetic number, because the mean of its divisors is an integer number (427982240).

Almost surely, 2^4869656661 is an apocalyptic number.

It is an amenable number.

4869656661 is a deficient number, since it is larger than the sum of its proper divisors (1978059179).

4869656661 is a wasteful number, since it uses less digits than its factorization.

4869656661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163896.

The product of its digits is 11197440, while the sum is 57.

The square root of 4869656661 is about 69782.9252826220. The cubic root of 4869656661 is about 1694.9859944371.

The spelling of 4869656661 in words is "four billion, eight hundred sixty-nine million, six hundred fifty-six thousand, six hundred sixty-one".