70166666107 has 4 divisors (see below), whose sum is σ = 70313152320. Its totient is φ = 70020179896.

The previous prime is 70166666069. The next prime is 70166666147.

It is a happy number.

70166666107 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70166666107 - 2³¹ = 68019182459 is a prime.

It is a super-2 number, since 2×70166666107² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70166666147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73242388 + ... + 73243345.

It is an arithmetic number, because the mean of its divisors is an integer number (17578288080).

Almost surely, 2^70166666107 is an apocalyptic number.

70166666107 is a deficient number, since it is larger than the sum of its proper divisors (146486213).

70166666107 is a wasteful number, since it uses less digits than its factorization.

70166666107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146486212.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 70166666107 in words is "seventy billion, one hundred sixty-six million, six hundred sixty-six thousand, one hundred seven".