3555451504256 has 64 divisors (see below), whose sum is σ = 7133891244480. Its totient is φ = 1765009655808.

The previous prime is 3555451504249. The next prime is 3555451504259. The reversal of 3555451504256 is 6524051545553.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×3555451504256² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3555451504259) 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 7 ways as a sum of consecutive naturals, for example, 18222191 + ... + 18416273.

It is an arithmetic number, because the mean of its divisors is an integer number (111467050695).

Almost surely, 2^{3555451504256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3555451504256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3566945622240).

3555451504256 is an abundant number, since it is smaller than the sum of its proper divisors (3578439740224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3555451504256 is a wasteful number, since it uses less digits than its factorization.

3555451504256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195121 (or 195109 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 50.

The spelling of 3555451504256 in words is "three trillion, five hundred fifty-five billion, four hundred fifty-one million, five hundred four thousand, two hundred fifty-six".