66869046970 has 16 divisors (see below), whose sum is σ = 131306492448. Its totient is φ = 24316017040.

The previous prime is 66869046949. The next prime is 66869046989. The reversal of 66869046970 is 7964096866.

It is a junction number, because it is equal to n+sod(n) for n = 66869046899 and 66869046908.

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, 303950104 + ... + 303950323.

It is an arithmetic number, because the mean of its divisors is an integer number (8206655778).

Almost surely, 2^66869046970 is an apocalyptic number.

66869046970 is a deficient number, since it is larger than the sum of its proper divisors (64437445478).

66869046970 is a wasteful number, since it uses less digits than its factorization.

66869046970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607900445.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 66869046970 in words is "sixty-six billion, eight hundred sixty-nine million, forty-six thousand, nine hundred seventy".