70166963 has 4 divisors (see below), whose sum is σ = 70183848. Its totient is φ = 70150080.

The previous prime is 70166953. The next prime is 70166969. The reversal of 70166963 is 36966107.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36966107 = 1789 ⋅20663.

It is a cyclic number.

It is not a de Polignac number, because 70166963 - 2⁴ = 70166947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70166969) 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, 2648 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (17545962).

Almost surely, 2^70166963 is an apocalyptic number.

70166963 is a deficient number, since it is larger than the sum of its proper divisors (16885).

70166963 is an equidigital number, since it uses as much as digits as its factorization.

70166963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16884.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 70166963 is about 8376.5722703263. The cubic root of 70166963 is about 412.4559375035.

The spelling of 70166963 in words is "seventy million, one hundred sixty-six thousand, nine hundred sixty-three".