355445035521551 has 4 divisors (see below), whose sum is σ = 355467499358112. Its totient is φ = 355422571684992.

The previous prime is 355445035521533. The next prime is 355445035521553. The reversal of 355445035521551 is 155125530544553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 355445035521551 - 2¹⁰ = 355445035520527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 355445035521493 and 355445035521502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355445035521553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11231894546 + ... + 11231926191.

It is an arithmetic number, because the mean of its divisors is an integer number (88866874839528).

Almost surely, 2^{355445035521551} is an apocalyptic number.

355445035521551 is a deficient number, since it is larger than the sum of its proper divisors (22463836561).

355445035521551 is a wasteful number, since it uses less digits than its factorization.

355445035521551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22463836560.

The product of its (nonzero) digits is 22500000, while the sum is 53.

The spelling of 355445035521551 in words is "three hundred fifty-five trillion, four hundred forty-five billion, thirty-five million, five hundred twenty-one thousand, five hundred fifty-one".