166415741 has 8 divisors (see below), whose sum is σ = 174804864. Its totient is φ = 158122800.

The previous prime is 166415713. The next prime is 166415749. The reversal of 166415741 is 147514661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166415741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166415749) 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, 20486 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (21850608).

Almost surely, 2^166415741 is an apocalyptic number.

It is an amenable number.

166415741 is a deficient number, since it is larger than the sum of its proper divisors (8389123).

166415741 is a wasteful number, since it uses less digits than its factorization.

166415741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48091.

The product of its digits is 20160, while the sum is 35.

The square root of 166415741 is about 12900.2225174607. Note that the first 3 decimals coincide. The cubic root of 166415741 is about 550.0448900000.

The spelling of 166415741 in words is "one hundred sixty-six million, four hundred fifteen thousand, seven hundred forty-one".