401344311155 has 16 divisors (see below), whose sum is σ = 485446332000. Its totient is φ = 318523518720.

The previous prime is 401344311139. The next prime is 401344311187. The reversal of 401344311155 is 551113443104.

It is not a de Polignac number, because 401344311155 - 2⁴ = 401344311139 is a prime.

It is a super-2 number, since 2×401344311155² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699521 + ... + 1136669.

It is an arithmetic number, because the mean of its divisors is an integer number (30340395750).

Almost surely, 2^401344311155 is an apocalyptic number.

401344311155 is a deficient number, since it is larger than the sum of its proper divisors (84102020845).

401344311155 is a wasteful number, since it uses less digits than its factorization.

401344311155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438614.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 401344311155 its reverse (551113443104), we get a palindrome (952457754259).

The spelling of 401344311155 in words is "four hundred one billion, three hundred forty-four million, three hundred eleven thousand, one hundred fifty-five".