4216615561 has 8 divisors (see below), whose sum is σ = 4373784800. Its totient is φ = 4062133152.

The previous prime is 4216615549. The next prime is 4216615589. The reversal of 4216615561 is 1655166124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4216615561 - 2¹⁵ = 4216582793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4216615561.

It is not an unprimeable number, because it can be changed into a prime (4216615531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668511 + ... + 674788.

It is an arithmetic number, because the mean of its divisors is an integer number (546723100).

Almost surely, 2^4216615561 is an apocalyptic number.

It is an amenable number.

4216615561 is a deficient number, since it is larger than the sum of its proper divisors (157169239).

4216615561 is a wasteful number, since it uses less digits than its factorization.

4216615561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343415.

The product of its digits is 43200, while the sum is 37.

The square root of 4216615561 is about 64935.4722859548. The cubic root of 4216615561 is about 1615.5534672917.

The spelling of 4216615561 in words is "four billion, two hundred sixteen million, six hundred fifteen thousand, five hundred sixty-one".