665662630634132 has 24 divisors (see below), whose sum is σ = 1206404229676800. Its totient is φ = 321045652457280.

The previous prime is 665662630634063. The next prime is 665662630634153. The reversal of 665662630634132 is 231436036266566.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8743035257 + ... + 8743111392.

It is an arithmetic number, because the mean of its divisors is an integer number (50266842903200).

Almost surely, 2^{665662630634132} is an apocalyptic number.

665662630634132 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

665662630634132 is a deficient number, since it is larger than the sum of its proper divisors (540741599042668).

665662630634132 is a wasteful number, since it uses less digits than its factorization.

665662630634132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17486146991 (or 17486146989 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 59.

The spelling of 665662630634132 in words is "six hundred sixty-five trillion, six hundred sixty-two billion, six hundred thirty million, six hundred thirty-four thousand, one hundred thirty-two".