156040440404 has 12 divisors (see below), whose sum is σ = 273210892500. Its totient is φ = 77980185408.

The previous prime is 156040440401. The next prime is 156040440419. The reversal of 156040440404 is 404044040651.

It can be written as a sum of positive squares in 2 ways, for example, as 102470412100 + 53570028304 = 320110^2 + 231452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156040440401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9999929 + ... + 10015520.

It is an arithmetic number, because the mean of its divisors is an integer number (22767574375).

Almost surely, 2^156040440404 is an apocalyptic number.

It is an amenable number.

156040440404 is a deficient number, since it is larger than the sum of its proper divisors (117170452096).

156040440404 is a wasteful number, since it uses less digits than its factorization.

156040440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017402 (or 20017400 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 156040440404 in words is "one hundred fifty-six billion, forty million, four hundred forty thousand, four hundred four".