4166381049 has 8 divisors (see below), whose sum is σ = 5631273312. Its totient is φ = 2739538080.

The previous prime is 4166380951. The next prime is 4166381057. The reversal of 4166381049 is 9401836614.

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

It is not a de Polignac number, because 4166381049 - 2²⁰ = 4165332473 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4166381049.

It is not an unprimeable number, because it can be changed into a prime (4166381449) 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, 9512067 + ... + 9512504.

It is an arithmetic number, because the mean of its divisors is an integer number (703909164).

Almost surely, 2^4166381049 is an apocalyptic number.

It is an amenable number.

4166381049 is a deficient number, since it is larger than the sum of its proper divisors (1464892263).

4166381049 is a wasteful number, since it uses less digits than its factorization.

4166381049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19024647.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 4166381049 is about 64547.5100139424. The cubic root of 4166381049 is about 1609.1122053925.

The spelling of 4166381049 in words is "four billion, one hundred sixty-six million, three hundred eighty-one thousand, forty-nine".