355523326561 has 16 divisors (see below), whose sum is σ = 384925359616. Its totient is φ = 326417319936.

The previous prime is 355523326547. The next prime is 355523326579. The reversal of 355523326561 is 165623325553.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 355523326561 - 2³³ = 346933391969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355523326261) 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, 3289366 + ... + 3395728.

It is an arithmetic number, because the mean of its divisors is an integer number (24057834976).

Almost surely, 2^355523326561 is an apocalyptic number.

It is an amenable number.

355523326561 is a deficient number, since it is larger than the sum of its proper divisors (29402033055).

355523326561 is a wasteful number, since it uses less digits than its factorization.

355523326561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107752.

The product of its digits is 2430000, while the sum is 46.

The spelling of 355523326561 in words is "three hundred fifty-five billion, five hundred twenty-three million, three hundred twenty-six thousand, five hundred sixty-one".