355154421213 has 6 divisors (see below), whose sum is σ = 513000830654. Its totient is φ = 236769614136.

The previous prime is 355154421203. The next prime is 355154421253. The reversal of 355154421213 is 312124451553.

355154421213 is a `hidden beast` number, since 3 + 5 + 5 + 15 + 4 + 421 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 343721893284 + 11432527929 = 586278^2 + 106923^2 .

It is not a de Polignac number, because 355154421213 - 2¹⁰ = 355154420189 is a prime.

It is a super-2 number, since 2×355154421213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355154421203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19730801170 + ... + 19730801187.

Almost surely, 2^355154421213 is an apocalyptic number.

It is an amenable number.

355154421213 is a deficient number, since it is larger than the sum of its proper divisors (157846409441).

355154421213 is a wasteful number, since it uses less digits than its factorization.

355154421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39461602363 (or 39461602360 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 355154421213 its reverse (312124451553), we get a palindrome (667278872766).

The spelling of 355154421213 in words is "three hundred fifty-five billion, one hundred fifty-four million, four hundred twenty-one thousand, two hundred thirteen".