3220145055425 has 6 divisors (see below), whose sum is σ = 3992979868758. Its totient is φ = 2576116044320.

The previous prime is 3220145055397. The next prime is 3220145055437. The reversal of 3220145055425 is 5245505410223.

It can be written as a sum of positive squares in 3 ways, for example, as 934932352561 + 2285212702864 = 966919^2 + 1511692^2 .

It is not a de Polignac number, because 3220145055425 - 2²⁴ = 3220128278209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64402901084 + ... + 64402901133.

It is an arithmetic number, because the mean of its divisors is an integer number (665496644793).

Almost surely, 2^{3220145055425} is an apocalyptic number.

It is an amenable number.

3220145055425 is a deficient number, since it is larger than the sum of its proper divisors (772834813333).

3220145055425 is a wasteful number, since it uses less digits than its factorization.

3220145055425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128805802227 (or 128805802222 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 3220145055425 in words is "three trillion, two hundred twenty billion, one hundred forty-five million, fifty-five thousand, four hundred twenty-five".