3554320425021 has 32 divisors (see below), whose sum is σ = 5294628126720. Its totient is φ = 2356546928112.

The previous prime is 3554320425017. The next prime is 3554320425031. The reversal of 3554320425021 is 1205240234553.

3554320425021 is a `hidden beast` number, since 3 + 5 + 543 + 2 + 0 + 42 + 50 + 21 = 666.

It is not a de Polignac number, because 3554320425021 - 2² = 3554320425017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3554320425001) 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 31 ways as a sum of consecutive naturals, for example, 3093066 + ... + 4083588.

It is an arithmetic number, because the mean of its divisors is an integer number (165457128960).

Almost surely, 2^{3554320425021} is an apocalyptic number.

It is an amenable number.

3554320425021 is a deficient number, since it is larger than the sum of its proper divisors (1740307701699).

3554320425021 is a wasteful number, since it uses less digits than its factorization.

3554320425021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991262 (or 991256 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 3554320425021 its reverse (1205240234553), we get a palindrome (4759560659574).

The spelling of 3554320425021 in words is "three trillion, five hundred fifty-four billion, three hundred twenty million, four hundred twenty-five thousand, twenty-one".