401232242605664 has 24 divisors (see below), whose sum is σ = 789926928819840. Its totient is φ = 200615879730816.

The previous prime is 401232242605643. The next prime is 401232242605687. The reversal of 401232242605664 is 466506242232104.

It is a congruent 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, 21115322 + ... + 35331590.

It is an arithmetic number, because the mean of its divisors is an integer number (32913622034160).

Almost surely, 2^{401232242605664} is an apocalyptic number.

It is an amenable number.

401232242605664 is a deficient number, since it is larger than the sum of its proper divisors (388694686214176).

401232242605664 is a wasteful number, since it uses less digits than its factorization.

401232242605664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098262 (or 15098254 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

Adding to 401232242605664 its reverse (466506242232104), we get a palindrome (867738484837768).

The spelling of 401232242605664 in words is "four hundred one trillion, two hundred thirty-two billion, two hundred forty-two million, six hundred five thousand, six hundred sixty-four".