185161948497 has 12 divisors (see below), whose sum is σ = 268655505664. Its totient is φ = 122887749240.

The previous prime is 185161948483. The next prime is 185161948529. The reversal of 185161948497 is 794849161581.

185161948497 is a `hidden beast` number, since 1 + 8 + 5 + 1 + 61 + 9 + 484 + 97 = 666.

It is not a de Polignac number, because 185161948497 - 2¹⁴ = 185161932113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185161948427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46127029 + ... + 46131042.

Almost surely, 2^185161948497 is an apocalyptic number.

It is an amenable number.

185161948497 is a deficient number, since it is larger than the sum of its proper divisors (83493557167).

185161948497 is a wasteful number, since it uses less digits than its factorization.

185161948497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92258300 (or 92258297 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 63.

The spelling of 185161948497 in words is "one hundred eighty-five billion, one hundred sixty-one million, nine hundred forty-eight thousand, four hundred ninety-seven".