401155420013504 has 56 divisors (see below), whose sum is σ = 867605483957520. Its totient is φ = 182917948667904.

The previous prime is 401155420013443. The next prime is 401155420013539. The reversal of 401155420013504 is 405310024551104.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2904496949 + ... + 2904635060.

It is an arithmetic number, because the mean of its divisors is an integer number (15492955070670).

Almost surely, 2^{401155420013504} is an apocalyptic number.

It is an amenable number.

401155420013504 is an abundant number, since it is smaller than the sum of its proper divisors (466450063944016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401155420013504 is a wasteful number, since it uses less digits than its factorization.

401155420013504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809132117 (or 5809132107 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 401155420013504 its reverse (405310024551104), we get a palindrome (806465444564608).

The spelling of 401155420013504 in words is "four hundred one trillion, one hundred fifty-five billion, four hundred twenty million, thirteen thousand, five hundred four".