66950670152 has 16 divisors (see below), whose sum is σ = 126182936940. Its totient is φ = 33301886976.

The previous prime is 66950670047. The next prime is 66950670161. The reversal of 66950670152 is 25107605966.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63753220036 + 3197450116 = 252494^2 + 56546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66950670097 and 66950670106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21679373 + ... + 21682460.

Almost surely, 2^66950670152 is an apocalyptic number.

It is an amenable number.

66950670152 is a deficient number, since it is larger than the sum of its proper divisors (59232266788).

66950670152 is a wasteful number, since it uses less digits than its factorization.

66950670152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43362032 (or 43362028 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 66950670152 in words is "sixty-six billion, nine hundred fifty million, six hundred seventy thousand, one hundred fifty-two".