401641442500 has 30 divisors (see below), whose sum is σ = 878309511926. Its totient is φ = 160656576000.

The previous prime is 401641442497. The next prime is 401641442549. The reversal of 401641442500 is 5244146104.

It can be written as a sum of positive squares in 5 ways, for example, as 238548235396 + 163093207104 = 488414^2 + 403848^2 .

It is a super-2 number, since 2×401641442500² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 80325789 + ... + 80330788.

Almost surely, 2^401641442500 is an apocalyptic number.

It is an amenable number.

401641442500 is an abundant number, since it is smaller than the sum of its proper divisors (476668069426).

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

401641442500 is a wasteful number, since it uses less digits than its factorization.

401641442500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160656601 (or 160656584 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 401641442500 its reverse (5244146104), we get a palindrome (406885588604).

The spelling of 401641442500 in words is "four hundred one billion, six hundred forty-one million, four hundred forty-two thousand, five hundred".