66777324532 has 12 divisors (see below), whose sum is σ = 123010861120. Its totient is φ = 31631364216.

The previous prime is 66777324499. The next prime is 66777324547. The reversal of 66777324532 is 23542377766.

It is a super-2 number, since 2×66777324532² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66777324532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439324428 + ... + 439324579.

Almost surely, 2^66777324532 is an apocalyptic number.

It is an amenable number.

66777324532 is a deficient number, since it is larger than the sum of its proper divisors (56233536588).

66777324532 is a wasteful number, since it uses less digits than its factorization.

66777324532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878649030 (or 878649028 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 52.

The spelling of 66777324532 in words is "sixty-six billion, seven hundred seventy-seven million, three hundred twenty-four thousand, five hundred thirty-two".