180106431697 has 8 divisors (see below), whose sum is σ = 181913490792. Its totient is φ = 178299840000.

The previous prime is 180106431629. The next prime is 180106431727. The reversal of 180106431697 is 796134601081.

It can be written as a sum of positive squares in 4 ways, for example, as 94587617601 + 85518814096 = 307551^2 + 292436^2 .

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 180106431697 - 2³¹ = 177958948049 is a prime.

It is a super-2 number, since 2×180106431697² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180106401697) 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, 685153 + ... + 910849.

It is an arithmetic number, because the mean of its divisors is an integer number (22739186349).

Almost surely, 2^180106431697 is an apocalyptic number.

It is an amenable number.

180106431697 is a deficient number, since it is larger than the sum of its proper divisors (1807059095).

180106431697 is a wasteful number, since it uses less digits than its factorization.

180106431697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233699.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 180106431697 in words is "one hundred eighty billion, one hundred six million, four hundred thirty-one thousand, six hundred ninety-seven".