36661998844 has 48 divisors (see below), whose sum is σ = 66867655680. Its totient is φ = 17569198080.

The previous prime is 36661998823. The next prime is 36661998859. The reversal of 36661998844 is 44889916663.

It is a happy number.

36661998844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5701159 + ... + 5707585.

It is an arithmetic number, because the mean of its divisors is an integer number (1393076160).

Almost surely, 2^36661998844 is an apocalyptic number.

It is an amenable number.

36661998844 is a deficient number, since it is larger than the sum of its proper divisors (30205656836).

36661998844 is a wasteful number, since it uses less digits than its factorization.

36661998844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898 (or 6896 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 64.

The spelling of 36661998844 in words is "thirty-six billion, six hundred sixty-one million, nine hundred ninety-eight thousand, eight hundred forty-four".