3216056405 has 8 divisors (see below), whose sum is σ = 3983760384. Its totient is φ = 2489850000.

The previous prime is 3216056401. The next prime is 3216056407. The reversal of 3216056405 is 5046506123.

3216056405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3216056405 - 2² = 3216056401 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 (3216056401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10374221 + ... + 10374530.

It is an arithmetic number, because the mean of its divisors is an integer number (497970048).

Almost surely, 2^3216056405 is an apocalyptic number.

It is an amenable number.

3216056405 is a deficient number, since it is larger than the sum of its proper divisors (767703979).

3216056405 is a wasteful number, since it uses less digits than its factorization.

3216056405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20748787.

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

The square root of 3216056405 is about 56710.2848255940. The cubic root of 3216056405 is about 1476.0731678696.

The spelling of 3216056405 in words is "three billion, two hundred sixteen million, fifty-six thousand, four hundred five".