1044201661636 has 12 divisors (see below), whose sum is σ = 2088403323328. Its totient is φ = 447514997832.

The previous prime is 1044201661619. The next prime is 1044201661663. The reversal of 1044201661636 is 6361661024401.

It is a happy number.

1044201661636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

1044201661636 is an admirable number.

It is a super-2 number, since 2×1044201661636² (a number of 25 digits) contains 22 as substring.

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, 18646458216 + ... + 18646458271.

Almost surely, 2^{1044201661636} is an apocalyptic number.

It is an amenable number.

1044201661636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1044201661636 is a wasteful number, since it uses less digits than its factorization.

1044201661636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37292916498 (or 37292916496 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 1044201661636 in words is "one trillion, forty-four billion, two hundred one million, six hundred sixty-one thousand, six hundred thirty-six".