665500000036 has 24 divisors (see below), whose sum is σ = 1168474910400. Its totient is φ = 331651842912.

The previous prime is 665499999977. The next prime is 665500000037. The reversal of 665500000036 is 630000005566.

It is a happy number.

665500000036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 665499999953 and 665500000007.

It is not an unprimeable number, because it can be changed into a prime (665500000037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242195 + ... + 1695301.

It is an arithmetic number, because the mean of its divisors is an integer number (48686454600).

Almost surely, 2^665500000036 is an apocalyptic number.

It is an amenable number.

665500000036 is a deficient number, since it is larger than the sum of its proper divisors (502974910364).

665500000036 is a wasteful number, since it uses less digits than its factorization.

665500000036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454323 (or 454321 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 665500000036 in words is "six hundred sixty-five billion, five hundred million, thirty-six", and thus it is an aban number.