3216561045 has 8 divisors (see below), whose sum is σ = 5146497696. Its totient is φ = 1715499216.

The previous prime is 3216561011. The next prime is 3216561097. The reversal of 3216561045 is 5401656123.

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

It is not a de Polignac number, because 3216561045 - 2⁶ = 3216560981 is a prime.

It is a super-2 number, since 2×3216561045² = 20692529912422984050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3216560997 and 3216561015.

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, 107218687 + ... + 107218716.

It is an arithmetic number, because the mean of its divisors is an integer number (643312212).

Almost surely, 2^3216561045 is an apocalyptic number.

It is an amenable number.

3216561045 is a deficient number, since it is larger than the sum of its proper divisors (1929936651).

3216561045 is a wasteful number, since it uses less digits than its factorization.

3216561045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214437411.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 3216561045 is about 56714.7339321979. The cubic root of 3216561045 is about 1476.1503686929.

The spelling of 3216561045 in words is "three billion, two hundred sixteen million, five hundred sixty-one thousand, forty-five".