401153445021 has 16 divisors (see below), whose sum is σ = 612776028800. Its totient is φ = 228670069248.

The previous prime is 401153445001. The next prime is 401153445029. The reversal of 401153445021 is 120544351104.

It is not a de Polignac number, because 401153445021 - 2⁶ = 401153444957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401153445021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401153445029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23344156 + ... + 23361333.

It is an arithmetic number, because the mean of its divisors is an integer number (38298501800).

Almost surely, 2^401153445021 is an apocalyptic number.

It is an amenable number.

401153445021 is a deficient number, since it is larger than the sum of its proper divisors (211622583779).

401153445021 is a wasteful number, since it uses less digits than its factorization.

401153445021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46705908.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 401153445021 its reverse (120544351104), we get a palindrome (521697796125).

The spelling of 401153445021 in words is "four hundred one billion, one hundred fifty-three million, four hundred forty-five thousand, twenty-one".