3216545605 has 64 divisors (see below), whose sum is σ = 5166443520. Its totient is φ = 1864249344.

The previous prime is 3216545603. The next prime is 3216545609. The reversal of 3216545605 is 5065456123.

It is a cyclic number.

It is not a de Polignac number, because 3216545605 - 2¹ = 3216545603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216545603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 280576 + ... + 291814.

It is an arithmetic number, because the mean of its divisors is an integer number (80725680).

Almost surely, 2^3216545605 is an apocalyptic number.

3216545605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3216545605 is a deficient number, since it is larger than the sum of its proper divisors (1949897915).

3216545605 is a wasteful number, since it uses less digits than its factorization.

3216545605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 3216545605 is about 56714.5978122035. The cubic root of 3216545605 is about 1476.1480067709.

The spelling of 3216545605 in words is "three billion, two hundred sixteen million, five hundred forty-five thousand, six hundred five".