60666565806 has 96 divisors (see below), whose sum is σ = 173518495488. Its totient is φ = 14830629120.

The previous prime is 60666565787. The next prime is 60666565807. The reversal of 60666565806 is 60856566606.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60666565807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1263820 + ... + 1310943.

It is an arithmetic number, because the mean of its divisors is an integer number (1807484328).

Almost surely, 2^60666565806 is an apocalyptic number.

60666565806 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

60666565806 is an abundant number, since it is smaller than the sum of its proper divisors (112851929682).

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

60666565806 is a wasteful number, since it uses less digits than its factorization.

60666565806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574806 (or 2574803 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 60666565806 in words is "sixty billion, six hundred sixty-six million, five hundred sixty-five thousand, eight hundred six".