665554036673350 has 24 divisors (see below), whose sum is σ = 1350469645323768. Its totient is φ = 242019649699200.

The previous prime is 665554036673303. The next prime is 665554036673353. The reversal of 665554036673350 is 53376630455566.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665554036673353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 605049123699 + ... + 605049124798.

It is an arithmetic number, because the mean of its divisors is an integer number (56269568555157).

Almost surely, 2^{665554036673350} is an apocalyptic number.

665554036673350 is an abundant number, since it is smaller than the sum of its proper divisors (684915608650418).

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

665554036673350 is a wasteful number, since it uses less digits than its factorization.

665554036673350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210098248520 (or 1210098248515 counting only the distinct ones).

The product of its (nonzero) digits is 612360000, while the sum is 64.

The spelling of 665554036673350 in words is "six hundred sixty-five trillion, five hundred fifty-four billion, thirty-six million, six hundred seventy-three thousand, three hundred fifty".