3256220615 has 8 divisors (see below), whose sum is σ = 4002769008. Its totient is φ = 2541440320.

The previous prime is 3256220549. The next prime is 3256220689. The reversal of 3256220615 is 5160226523.

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

It is not a de Polignac number, because 3256220615 - 2¹⁶ = 3256155079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941797 + ... + 7942206.

It is an arithmetic number, because the mean of its divisors is an integer number (500346126).

Almost surely, 2^3256220615 is an apocalyptic number.

3256220615 is a deficient number, since it is larger than the sum of its proper divisors (746548393).

3256220615 is a wasteful number, since it uses less digits than its factorization.

3256220615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15884049.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 3256220615 is about 57063.3035759410. The cubic root of 3256220615 is about 1482.1924856056.

The spelling of 3256220615 in words is "three billion, two hundred fifty-six million, two hundred twenty thousand, six hundred fifteen".