166303798271 has 8 divisors (see below), whose sum is σ = 179742959424. Its totient is φ = 152957003040.

The previous prime is 166303798123. The next prime is 166303798301. The reversal of 166303798271 is 172897303661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166303798271 is a prime.

It is a super-2 number, since 2×166303798271² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166303792271) 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, 23087735 + ... + 23094936.

It is an arithmetic number, because the mean of its divisors is an integer number (22467869928).

Almost surely, 2^166303798271 is an apocalyptic number.

166303798271 is a deficient number, since it is larger than the sum of its proper divisors (13439161153).

166303798271 is a wasteful number, since it uses less digits than its factorization.

166303798271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46182961.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 166303798271 in words is "one hundred sixty-six billion, three hundred three million, seven hundred ninety-eight thousand, two hundred seventy-one".