166112202031 has 16 divisors (see below), whose sum is σ = 168513216768. Its totient is φ = 163728835200.

The previous prime is 166112202029. The next prime is 166112202059. The reversal of 166112202031 is 130202211661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 166112202031 - 2¹ = 166112202029 is a prime.

It is a super-3 number, since 3×166112202031³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166112201987 and 166112202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166112205031) 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, 43177750 + ... + 43181596.

It is an arithmetic number, because the mean of its divisors is an integer number (10532076048).

Almost surely, 2^166112202031 is an apocalyptic number.

166112202031 is a deficient number, since it is larger than the sum of its proper divisors (2401014737).

166112202031 is a wasteful number, since it uses less digits than its factorization.

166112202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 166112202031 its reverse (130202211661), we get a palindrome (296314413692).

The spelling of 166112202031 in words is "one hundred sixty-six billion, one hundred twelve million, two hundred two thousand, thirty-one".