44406156636 has 60 divisors (see below), whose sum is σ = 118276821432. Its totient is φ = 14522762592.

The previous prime is 44406156623. The next prime is 44406156643. The reversal of 44406156636 is 63665160444.

44406156636 is a `hidden beast` number, since 4 + 4 + 4 + 0 + 6 + 1 + 5 + 6 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 44406156591 and 44406156600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1275810 + ... + 1310153.

Almost surely, 2^44406156636 is an apocalyptic number.

It is an amenable number.

44406156636 is an abundant number, since it is smaller than the sum of its proper divisors (73870664796).

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

44406156636 is a wasteful number, since it uses less digits than its factorization.

44406156636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586032 (or 2586021 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 44406156636 in words is "forty-four billion, four hundred six million, one hundred fifty-six thousand, six hundred thirty-six".