77610066 has 32 divisors (see below), whose sum is σ = 167857920. Its totient is φ = 23828736.

The previous prime is 77610059. The next prime is 77610067. The reversal of 77610066 is 66001677.

It is not an unprimeable number, because it can be changed into a prime (77610067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3301 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (5245560).

Almost surely, 2^77610066 is an apocalyptic number.

77610066 is an abundant number, since it is smaller than the sum of its proper divisors (90247854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77610066 is a wasteful number, since it uses less digits than its factorization.

77610066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16258.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 77610066 is about 8809.6575415847. The cubic root of 77610066 is about 426.5526891463.

The spelling of 77610066 in words is "seventy-seven million, six hundred ten thousand, sixty-six".