3557216069 has 4 divisors (see below), whose sum is σ = 3880599360. Its totient is φ = 3233832780.

The previous prime is 3557216057. The next prime is 3557216093. The reversal of 3557216069 is 9606127553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3557216069 - 2⁴ = 3557216053 is a prime.

It is a super-2 number, since 2×3557216069² = 25307572323103625522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557216269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161691629 + ... + 161691650.

It is an arithmetic number, because the mean of its divisors is an integer number (970149840).

Almost surely, 2^3557216069 is an apocalyptic number.

It is an amenable number.

3557216069 is a deficient number, since it is larger than the sum of its proper divisors (323383291).

3557216069 is a wasteful number, since it uses less digits than its factorization.

3557216069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323383290.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 3557216069 is about 59642.4016032218. The cubic root of 3557216069 is about 1526.5232214329.

The spelling of 3557216069 in words is "three billion, five hundred fifty-seven million, two hundred sixteen thousand, sixty-nine".