3555401055344 has 80 divisors (see below), whose sum is σ = 7182646947840. Its totient is φ = 1702986647040.

The previous prime is 3555401055343. The next prime is 3555401055407. The reversal of 3555401055344 is 4435501045553.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3555401055295 and 3555401055304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3555401055341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145946237 + ... + 145970595.

It is an arithmetic number, because the mean of its divisors is an integer number (89783086848).

Almost surely, 2^{3555401055344} 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 3555401055344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3591323473920).

3555401055344 is an abundant number, since it is smaller than the sum of its proper divisors (3627245892496).

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

3555401055344 is a wasteful number, since it uses less digits than its factorization.

3555401055344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27358 (or 27352 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 3555401055344 in words is "three trillion, five hundred fifty-five billion, four hundred one million, fifty-five thousand, three hundred forty-four".