355500421323555 has 96 divisors (see below), whose sum is σ = 590300226109440. Its totient is φ = 182652152601600.

The previous prime is 355500421323529. The next prime is 355500421323611. The reversal of 355500421323555 is 555323124005553.

It is not a de Polignac number, because 355500421323555 - 2¹⁵ = 355500421290787 is a prime.

It is a super-2 number, since 2×355500421323555² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2839374955 + ... + 2839500155.

It is an arithmetic number, because the mean of its divisors is an integer number (6148960688640).

Almost surely, 2^{355500421323555} is an apocalyptic number.

355500421323555 is a deficient number, since it is larger than the sum of its proper divisors (234799804785885).

355500421323555 is a wasteful number, since it uses less digits than its factorization.

355500421323555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126649 (or 126602 counting only the distinct ones).

The product of its (nonzero) digits is 6750000, while the sum is 48.

The spelling of 355500421323555 in words is "three hundred fifty-five trillion, five hundred billion, four hundred twenty-one million, three hundred twenty-three thousand, five hundred fifty-five".