166415633 has 8 divisors (see below), whose sum is σ = 172444800. Its totient is φ = 160484688.

The previous prime is 166415629. The next prime is 166415647. The reversal of 166415633 is 336514661.

166415633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166415633 - 2² = 166415629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166415593 and 166415602.

It is not an unprimeable number, because it can be changed into a prime (166415663) 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, 21098 + ... + 27891.

It is an arithmetic number, because the mean of its divisors is an integer number (21555600).

Almost surely, 2^166415633 is an apocalyptic number.

It is an amenable number.

166415633 is a deficient number, since it is larger than the sum of its proper divisors (6029167).

166415633 is an equidigital number, since it uses as much as digits as its factorization.

166415633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49111.

The product of its digits is 38880, while the sum is 35.

The square root of 166415633 is about 12900.2183314857. The cubic root of 166415633 is about 550.0447710111.

The spelling of 166415633 in words is "one hundred sixty-six million, four hundred fifteen thousand, six hundred thirty-three".