66670366970 has 16 divisors (see below), whose sum is σ = 123250084488. Its totient is φ = 25947385920.

The previous prime is 66670366967. The next prime is 66670367003. The reversal of 66670366970 is 7966307666.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66100924201 + 569442769 = 257101^2 + 23863^2 .

It is a Curzon 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, 90094721 + ... + 90095460.

Almost surely, 2^66670366970 is an apocalyptic number.

66670366970 is a deficient number, since it is larger than the sum of its proper divisors (56579717518).

66670366970 is a wasteful number, since it uses less digits than its factorization.

66670366970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180190225.

The product of its (nonzero) digits is 10287648, while the sum is 56.

The spelling of 66670366970 in words is "sixty-six billion, six hundred seventy million, three hundred sixty-six thousand, nine hundred seventy".