60666777 has 12 divisors (see below), whose sum is σ = 87697584. Its totient is φ = 40413240.

The previous prime is 60666773. The next prime is 60666797. The reversal of 60666777 is 77766606.

It is a happy number.

It is not a de Polignac number, because 60666777 - 2² = 60666773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60666773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19918 + ... + 22760.

It is an arithmetic number, because the mean of its divisors is an integer number (7308132).

Almost surely, 2^60666777 is an apocalyptic number.

It is an amenable number.

60666777 is a deficient number, since it is larger than the sum of its proper divisors (27030807).

60666777 is a wasteful number, since it uses less digits than its factorization.

60666777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220 (or 5217 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 60666777 is about 7788.8880464415. Note that the first 3 decimals coincide. The cubic root of 60666777 is about 392.9316160175.

The spelling of 60666777 in words is "sixty million, six hundred sixty-six thousand, seven hundred seventy-seven".