166815048 has 32 divisors (see below), whose sum is σ = 417425760. Its totient is φ = 55553280.

The previous prime is 166815043. The next prime is 166815073. The reversal of 166815048 is 840518661.

It is a junction number, because it is equal to n+sod(n) for n = 166814997 and 166815015.

It is not an unprimeable number, because it can be changed into a prime (166815043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30111 + ... + 35217.

It is an arithmetic number, because the mean of its divisors is an integer number (13044555).

Almost surely, 2^166815048 is an apocalyptic number.

It is an amenable number.

166815048 is an abundant number, since it is smaller than the sum of its proper divisors (250610712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166815048 is a wasteful number, since it uses less digits than its factorization.

166815048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477 (or 6473 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 166815048 is about 12915.6899931827. The cubic root of 166815048 is about 550.4844744966.

The spelling of 166815048 in words is "one hundred sixty-six million, eight hundred fifteen thousand, forty-eight".