77145166 has 8 divisors (see below), whose sum is σ = 132248880. Its totient is φ = 33062208.

The previous prime is 77145163. The next prime is 77145169. The reversal of 77145166 is 66154177.

It is an interprime number because it is at equal distance from previous prime (77145163) and next prime (77145169).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77145161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2755171 + ... + 2755198.

It is an arithmetic number, because the mean of its divisors is an integer number (16531110).

Almost surely, 2^77145166 is an apocalyptic number.

77145166 is a deficient number, since it is larger than the sum of its proper divisors (55103714).

77145166 is a wasteful number, since it uses less digits than its factorization.

77145166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510378.

The product of its digits is 35280, while the sum is 37.

The square root of 77145166 is about 8783.2320930282. The cubic root of 77145166 is about 425.6992705135.

It can be divided in two parts, 7714 and 5166, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 77145166 in words is "seventy-seven million, one hundred forty-five thousand, one hundred sixty-six".