3220553146347 has 18 divisors (see below), whose sum is σ = 4824244972092. Its totient is φ = 2147016780972.

The previous prime is 3220553146339. The next prime is 3220553146387. The reversal of 3220553146347 is 7436413550223.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

3220553146347 is a `hidden beast` number, since 3 + 2 + 2 + 0 + 5 + 5 + 3 + 1 + 4 + 634 + 7 = 666.

It is not a de Polignac number, because 3220553146347 - 2³ = 3220553146339 is a prime.

It is a super-2 number, since 2×3220553146347² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3220553146387) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27917328 + ... + 28032450.

Almost surely, 2^{3220553146347} is an apocalyptic number.

3220553146347 is a deficient number, since it is larger than the sum of its proper divisors (1603691825745).

3220553146347 is an frugal number, since it uses more digits than its factorization.

3220553146347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230261 (or 115126 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 3220553146347 in words is "three trillion, two hundred twenty billion, five hundred fifty-three million, one hundred forty-six thousand, three hundred forty-seven".