66707770070 has 32 divisors (see below), whose sum is σ = 122982187680. Its totient is φ = 26038010880.

The previous prime is 66707770033. The next prime is 66707770097. The reversal of 66707770070 is 7007770766.

It is a junction number, because it is equal to n+sod(n) for n = 66707769997 and 66707770024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387110 + ... + 532230.

It is an arithmetic number, because the mean of its divisors is an integer number (3843193365).

Almost surely, 2^66707770070 is an apocalyptic number.

66707770070 is a deficient number, since it is larger than the sum of its proper divisors (56274417610).

66707770070 is a wasteful number, since it uses less digits than its factorization.

66707770070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146240.

The product of its (nonzero) digits is 605052, while the sum is 47.

The spelling of 66707770070 in words is "sixty-six billion, seven hundred seven million, seven hundred seventy thousand, seventy".