401413215505 has 4 divisors (see below), whose sum is σ = 481695858612. Its totient is φ = 321130572400.

The previous prime is 401413215487. The next prime is 401413215521. The reversal of 401413215505 is 505512314104.

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 161006377536 + 240406837969 = 401256^2 + 490313^2 .

It is not a de Polignac number, because 401413215505 - 2¹¹ = 401413213457 is a prime.

It is a super-2 number, since 2×401413215505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 40141321546 + ... + 40141321555.

It is an arithmetic number, because the mean of its divisors is an integer number (120423964653).

Almost surely, 2^401413215505 is an apocalyptic number.

It is an amenable number.

401413215505 is a deficient number, since it is larger than the sum of its proper divisors (80282643107).

401413215505 is an equidigital number, since it uses as much as digits as its factorization.

401413215505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80282643106.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 401413215505 its reverse (505512314104), we get a palindrome (906925529609).

The spelling of 401413215505 in words is "four hundred one billion, four hundred thirteen million, two hundred fifteen thousand, five hundred five".