166479647 has 8 divisors (see below), whose sum is σ = 168064512. Its totient is φ = 164899800.

The previous prime is 166479629. The next prime is 166479661. The reversal of 166479647 is 746974661.

It is a happy number.

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 166479647 - 2⁶ = 166479583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166479595 and 166479604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166479847) 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, 105458 + ... + 107024.

It is an arithmetic number, because the mean of its divisors is an integer number (21008064).

Almost surely, 2^166479647 is an apocalyptic number.

166479647 is a deficient number, since it is larger than the sum of its proper divisors (1584865).

166479647 is a wasteful number, since it uses less digits than its factorization.

166479647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509.

The product of its digits is 1524096, while the sum is 50.

The square root of 166479647 is about 12902.6992137304. The cubic root of 166479647 is about 550.1152893303.

The spelling of 166479647 in words is "one hundred sixty-six million, four hundred seventy-nine thousand, six hundred forty-seven".