166295457449 has 8 divisors (see below), whose sum is σ = 181515337248. Its totient is φ = 151092596160.

The previous prime is 166295457437. The next prime is 166295457457. The reversal of 166295457449 is 944754592661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166295457449 - 2³⁶ = 97575980713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166295457391 and 166295457400.

It is not an unprimeable number, because it can be changed into a prime (166295457409) 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, 4234187 + ... + 4273280.

It is an arithmetic number, because the mean of its divisors is an integer number (22689417156).

Almost surely, 2^166295457449 is an apocalyptic number.

It is an amenable number.

166295457449 is a deficient number, since it is larger than the sum of its proper divisors (15219879799).

166295457449 is a wasteful number, since it uses less digits than its factorization.

166295457449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509255.

The product of its digits is 65318400, while the sum is 62.

The spelling of 166295457449 in words is "one hundred sixty-six billion, two hundred ninety-five million, four hundred fifty-seven thousand, four hundred forty-nine".