30161666217 has 8 divisors (see below), whose sum is σ = 40591401696. Its totient is φ = 19919854112.

The previous prime is 30161666209. The next prime is 30161666221. The reversal of 30161666217 is 71266616103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30161666217 - 2³ = 30161666209 is a prime.

It is a super-2 number, since 2×30161666217² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30161666317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46980468 + ... + 46981109.

It is an arithmetic number, because the mean of its divisors is an integer number (5073925212).

Almost surely, 2^30161666217 is an apocalyptic number.

It is an amenable number.

30161666217 is a deficient number, since it is larger than the sum of its proper divisors (10429735479).

30161666217 is a wasteful number, since it uses less digits than its factorization.

30161666217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93961687.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 30161666217 in words is "thirty billion, one hundred sixty-one million, six hundred sixty-six thousand, two hundred seventeen".