217162052007 has 16 divisors (see below), whose sum is σ = 291588000000. Its totient is φ = 143758321344.

The previous prime is 217162051993. The next prime is 217162052033. The reversal of 217162052007 is 700250261712.

It is not a de Polignac number, because 217162052007 - 2²⁴ = 217145274791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217162052207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66582 + ... + 662387.

It is an arithmetic number, because the mean of its divisors is an integer number (18224250000).

Almost surely, 2^217162052007 is an apocalyptic number.

217162052007 is a deficient number, since it is larger than the sum of its proper divisors (74425947993).

217162052007 is a wasteful number, since it uses less digits than its factorization.

217162052007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729670.

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 217162052007 in words is "two hundred seventeen billion, one hundred sixty-two million, fifty-two thousand, seven".