66412077 has 8 divisors (see below), whose sum is σ = 90942816. Its totient is φ = 43078032.

The previous prime is 66412069. The next prime is 66412079. The reversal of 66412077 is 77021466.

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

It is not a de Polignac number, because 66412077 - 2³ = 66412069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66412079) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 299043 + ... + 299264.

It is an arithmetic number, because the mean of its divisors is an integer number (11367852).

Almost surely, 2^66412077 is an apocalyptic number.

It is an amenable number.

66412077 is a deficient number, since it is larger than the sum of its proper divisors (24530739).

66412077 is a wasteful number, since it uses less digits than its factorization.

66412077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598347.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 66412077 is about 8149.3605270598. The cubic root of 66412077 is about 404.9633193422.

The spelling of 66412077 in words is "sixty-six million, four hundred twelve thousand, seventy-seven".