181473150614157 has 24 divisors (see below), whose sum is σ = 267722362013184. Its totient is φ = 118400366212704.

The previous prime is 181473150614141. The next prime is 181473150614159. The reversal of 181473150614157 is 751416051374181.

181473150614157 is a `hidden beast` number, since 1 + 8 + 1 + 4 + 7 + 3 + 1 + 5 + 0 + 614 + 15 + 7 = 666.

It is not a de Polignac number, because 181473150614157 - 2⁴ = 181473150614141 is a prime.

It is a super-2 number, since 2×181473150614157² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181473150614159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7291893 + ... + 20398970.

It is an arithmetic number, because the mean of its divisors is an integer number (11155098417216).

Almost surely, 2^{181473150614157} is an apocalyptic number.

It is an amenable number.

181473150614157 is a deficient number, since it is larger than the sum of its proper divisors (86249211399027).

181473150614157 is a wasteful number, since it uses less digits than its factorization.

181473150614157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27706409 (or 27706406 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 181473150614157 in words is "one hundred eighty-one trillion, four hundred seventy-three billion, one hundred fifty million, six hundred fourteen thousand, one hundred fifty-seven".