401201511000440 has 16 divisors (see below), whose sum is σ = 902703399751080. Its totient is φ = 160480604400160.

The previous prime is 401201511000439. The next prime is 401201511000461. The reversal of 401201511000440 is 44000115102104.

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 3 ways as a sum of consecutive naturals, for example, 5015018887466 + ... + 5015018887545.

Almost surely, 2^{401201511000440} is an apocalyptic number.

401201511000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401201511000440 is an abundant number, since it is smaller than the sum of its proper divisors (501501888750640).

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

401201511000440 is a wasteful number, since it uses less digits than its factorization.

401201511000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030037775022 (or 10030037775018 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 401201511000440 its reverse (44000115102104), we get a palindrome (445201626102544).

The spelling of 401201511000440 in words is "four hundred one trillion, two hundred one billion, five hundred eleven million, four hundred forty", and thus it is an aban number.