166177545484 has 24 divisors (see below), whose sum is σ = 296661336608. Its totient is φ = 81433797120.

The previous prime is 166177545467. The next prime is 166177545487. The reversal of 166177545484 is 484545771661.

It is a super-2 number, since 2×166177545484² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166177545487) 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 7 ways as a sum of consecutive naturals, for example, 2039127 + ... + 2119054.

Almost surely, 2^166177545484 is an apocalyptic number.

It is an amenable number.

166177545484 is a deficient number, since it is larger than the sum of its proper divisors (130483791124).

166177545484 is a wasteful number, since it uses less digits than its factorization.

166177545484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158385 (or 4158383 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 58.

The spelling of 166177545484 in words is "one hundred sixty-six billion, one hundred seventy-seven million, five hundred forty-five thousand, four hundred eighty-four".