59966556787 has 16 divisors (see below), whose sum is σ = 64116956160. Its totient is φ = 55974941568.

The previous prime is 59966556779. The next prime is 59966556791. The reversal of 59966556787 is 78765566995.

It is a cyclic number.

It is not a de Polignac number, because 59966556787 - 2³ = 59966556779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (59966556707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9523 + ... + 346444.

It is an arithmetic number, because the mean of its divisors is an integer number (4007309760).

Almost surely, 2^59966556787 is an apocalyptic number.

59966556787 is a deficient number, since it is larger than the sum of its proper divisors (4150399373).

59966556787 is a wasteful number, since it uses less digits than its factorization.

59966556787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356190.

The product of its digits is 857304000, while the sum is 73.

The spelling of 59966556787 in words is "fifty-nine billion, nine hundred sixty-six million, five hundred fifty-six thousand, seven hundred eighty-seven".