66970307675 has 24 divisors (see below), whose sum is σ = 84247517040. Its totient is φ = 52800422400.

The previous prime is 66970307669. The next prime is 66970307681. The reversal of 66970307675 is 57670307966.

It is an interprime number because it is at equal distance from previous prime (66970307669) and next prime (66970307681).

It is not a de Polignac number, because 66970307675 - 2⁶ = 66970307611 is a prime.

It is a super-2 number, since 2×66970307675² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66970307675.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2396936 + ... + 2424714.

It is an arithmetic number, because the mean of its divisors is an integer number (3510313210).

Almost surely, 2^66970307675 is an apocalyptic number.

66970307675 is a deficient number, since it is larger than the sum of its proper divisors (17277209365).

66970307675 is a wasteful number, since it uses less digits than its factorization.

66970307675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29183 (or 29178 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 56.

The spelling of 66970307675 in words is "sixty-six billion, nine hundred seventy million, three hundred seven thousand, six hundred seventy-five".