44661616644 has 12 divisors (see below), whose sum is σ = 104210438864. Its totient is φ = 14887205544.

The previous prime is 44661616639. The next prime is 44661616667.

44661616644 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 44661616593 and 44661616602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860900682 + ... + 1860900705.

Almost surely, 2^44661616644 is an apocalyptic number.

It is an amenable number.

44661616644 is an abundant number, since it is smaller than the sum of its proper divisors (59548822220).

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

44661616644 is a wasteful number, since it uses less digits than its factorization.

44661616644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721801394 (or 3721801392 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 48.

The spelling of 44661616644 in words is "forty-four billion, six hundred sixty-one million, six hundred sixteen thousand, six hundred forty-four".