355661505043544 has 64 divisors (see below), whose sum is σ = 768907731240000. Its totient is φ = 151071282561024.

The previous prime is 355661505043543. The next prime is 355661505043591. The reversal of 355661505043544 is 445340505166553.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 355661505043544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355661505043543) 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, 155476184 + ... + 157747160.

It is an arithmetic number, because the mean of its divisors is an integer number (12014183300625).

Almost surely, 2^{355661505043544} is an apocalyptic number.

It is an amenable number.

355661505043544 is an abundant number, since it is smaller than the sum of its proper divisors (413246226196456).

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

355661505043544 is a wasteful number, since it uses less digits than its factorization.

355661505043544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295852 (or 2295848 counting only the distinct ones).

The product of its (nonzero) digits is 64800000, while the sum is 56.

The spelling of 355661505043544 in words is "three hundred fifty-five trillion, six hundred sixty-one billion, five hundred five million, forty-three thousand, five hundred forty-four".