66600760473766 has 16 divisors (see below), whose sum is σ = 103780597392000. Its totient is φ = 32020912160640.

The previous prime is 66600760473739. The next prime is 66600760473781. The reversal of 66600760473766 is 66737406700666.

It is a super-2 number, since 2×66600760473766² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66600760473698 and 66600760473707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3421027891 + ... + 3421047358.

It is an arithmetic number, because the mean of its divisors is an integer number (6486287337000).

Almost surely, 2^{66600760473766} is an apocalyptic number.

66600760473766 is a deficient number, since it is larger than the sum of its proper divisors (37179836918234).

66600760473766 is a wasteful number, since it uses less digits than its factorization.

66600760473766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6842075439.

The product of its (nonzero) digits is 192036096, while the sum is 64.

The spelling of 66600760473766 in words is "sixty-six trillion, six hundred billion, seven hundred sixty million, four hundred seventy-three thousand, seven hundred sixty-six".