70216163 has 4 divisors (see below), whose sum is σ = 72637440. Its totient is φ = 67794888.

The previous prime is 70216127. The next prime is 70216169. The reversal of 70216163 is 36161207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36161207 = 73 ⋅495359.

It is a cyclic number.

It is not a de Polignac number, because 70216163 - 2¹⁰ = 70215139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70216169) 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, 1210595 + ... + 1210652.

It is an arithmetic number, because the mean of its divisors is an integer number (18159360).

Almost surely, 2^70216163 is an apocalyptic number.

70216163 is a deficient number, since it is larger than the sum of its proper divisors (2421277).

70216163 is a wasteful number, since it uses less digits than its factorization.

70216163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421276.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70216163 is about 8379.5085178070. The cubic root of 70216163 is about 412.5523175761.

The spelling of 70216163 in words is "seventy million, two hundred sixteen thousand, one hundred sixty-three".