66124412277 has 32 divisors (see below), whose sum is σ = 110169400320. Its totient is φ = 34272750720.

The previous prime is 66124412269. The next prime is 66124412297. The reversal of 66124412277 is 77221442166.

It is not a de Polignac number, because 66124412277 - 2³ = 66124412269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66124412297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220752 + ... + 425417.

It is an arithmetic number, because the mean of its divisors is an integer number (3442793760).

Almost surely, 2^66124412277 is an apocalyptic number.

It is an amenable number.

66124412277 is a deficient number, since it is larger than the sum of its proper divisors (44044988043).

66124412277 is a wasteful number, since it uses less digits than its factorization.

66124412277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646633.

The product of its digits is 225792, while the sum is 42.

The spelling of 66124412277 in words is "sixty-six billion, one hundred twenty-four million, four hundred twelve thousand, two hundred seventy-seven".