66177562488 has 16 divisors (see below), whose sum is σ = 165443906280. Its totient is φ = 22059187488.

The previous prime is 66177562469. The next prime is 66177562489. The reversal of 66177562488 is 88426577166.

It is a hoax number, since the sum of its digits (60) 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 (66177562489) by changing a digit.

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, 1378699195 + ... + 1378699242.

Almost surely, 2^66177562488 is an apocalyptic number.

It is an amenable number.

66177562488 is an abundant number, since it is smaller than the sum of its proper divisors (99266343792).

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

66177562488 is a wasteful number, since it uses less digits than its factorization.

66177562488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757398446 (or 2757398442 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The spelling of 66177562488 in words is "sixty-six billion, one hundred seventy-seven million, five hundred sixty-two thousand, four hundred eighty-eight".