216166601001 has 16 divisors (see below), whose sum is σ = 316997178624. Its totient is φ = 130195267584.

The previous prime is 216166600981. The next prime is 216166601009. The reversal of 216166601001 is 100106661612.

It is not a de Polignac number, because 216166601001 - 2¹³ = 216166592809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216166601001.

It is not an unprimeable number, because it can be changed into a prime (216166601009) 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, 58963416 + ... + 58967081.

It is an arithmetic number, because the mean of its divisors is an integer number (19812323664).

Almost surely, 2^216166601001 is an apocalyptic number.

It is an amenable number.

216166601001 is a deficient number, since it is larger than the sum of its proper divisors (100830577623).

216166601001 is a wasteful number, since it uses less digits than its factorization.

216166601001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117930560.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 216166601001 in words is "two hundred sixteen billion, one hundred sixty-six million, six hundred one thousand, one".