66763013275608 has 96 divisors (see below), whose sum is σ = 181165543876800. Its totient is φ = 20493437737344.

The previous prime is 66763013275583. The next prime is 66763013275619. The reversal of 66763013275608 is 80657231036766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17942910 + ... + 21341837.

It is an arithmetic number, because the mean of its divisors is an integer number (1887141082050).

Almost surely, 2^{66763013275608} is an apocalyptic number.

It is an amenable number.

66763013275608 is an abundant number, since it is smaller than the sum of its proper divisors (114402530601192).

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

66763013275608 is a wasteful number, since it uses less digits than its factorization.

66763013275608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39285201 (or 39285184 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 60.

The spelling of 66763013275608 in words is "sixty-six trillion, seven hundred sixty-three billion, thirteen million, two hundred seventy-five thousand, six hundred eight".