401255233010545 has 4 divisors (see below), whose sum is σ = 481506279612660. Its totient is φ = 321004186408432.

The previous prime is 401255233010509. The next prime is 401255233010603. The reversal of 401255233010545 is 545010332552104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 238044413401344 + 163210819609201 = 15428688^2 + 12775399^2 .

It is a cyclic number.

It is not a de Polignac number, because 401255233010545 - 2⁹ = 401255233010033 is a prime.

It is a super-2 number, since 2×401255233010545² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401255233010498 and 401255233010507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40125523301050 + ... + 40125523301059.

It is an arithmetic number, because the mean of its divisors is an integer number (120376569903165).

Almost surely, 2^{401255233010545} is an apocalyptic number.

It is an amenable number.

401255233010545 is a deficient number, since it is larger than the sum of its proper divisors (80251046602115).

401255233010545 is an equidigital number, since it uses as much as digits as its factorization.

401255233010545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80251046602114.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 401255233010545 its reverse (545010332552104), we get a palindrome (946265565562649).

The spelling of 401255233010545 in words is "four hundred one trillion, two hundred fifty-five billion, two hundred thirty-three million, ten thousand, five hundred forty-five".