501400110400 has 168 divisors, whose sum is σ = 1471314222720. Its totient is φ = 164434237440.

The previous prime is 501400110353. The next prime is 501400110403. The reversal of 501400110400 is 4011004105.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501400110403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715615 + ... + 1230814.

Almost surely, 2^501400110400 is an apocalyptic number.

501400110400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501400110400 is an abundant number, since it is smaller than the sum of its proper divisors (969914112320).

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

501400110400 is a wasteful number, since it uses less digits than its factorization.

501400110400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946481 (or 1946466 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 501400110400 its reverse (4011004105), we get a palindrome (505411114505).

The spelling of 501400110400 in words is "five hundred one billion, four hundred million, one hundred ten thousand, four hundred".