66767595979832 has 16 divisors (see below), whose sum is σ = 136570082686200. Its totient is φ = 30348907263520.

The previous prime is 66767595979823. The next prime is 66767595979873. The reversal of 66767595979832 is 23897959576766.

66767595979832 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379361340707 + ... + 379361340882.

Almost surely, 2^{66767595979832} is an apocalyptic number.

It is an amenable number.

66767595979832 is an abundant number, since it is smaller than the sum of its proper divisors (69802486706368).

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

66767595979832 is a wasteful number, since it uses less digits than its factorization.

66767595979832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758722681606 (or 758722681602 counting only the distinct ones).

The product of its digits is 64812182400, while the sum is 89.

The spelling of 66767595979832 in words is "sixty-six trillion, seven hundred sixty-seven billion, five hundred ninety-five million, nine hundred seventy-nine thousand, eight hundred thirty-two".