66776122 has 24 divisors (see below), whose sum is σ = 117046080. Its totient is φ = 28488600.

The previous prime is 66776063. The next prime is 66776137. The reversal of 66776122 is 22167766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21997 + ... + 24847.

It is an arithmetic number, because the mean of its divisors is an integer number (4876920).

Almost surely, 2^66776122 is an apocalyptic number.

66776122 is a deficient number, since it is larger than the sum of its proper divisors (50269958).

66776122 is a wasteful number, since it uses less digits than its factorization.

66776122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106 (or 3099 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 66776122 is about 8171.6658032497. The cubic root of 66776122 is about 405.7019215184.

The spelling of 66776122 in words is "sixty-six million, seven hundred seventy-six thousand, one hundred twenty-two".