380736166 has 4 divisors (see below), whose sum is σ = 571104252. Its totient is φ = 190368082.

The previous prime is 380736149. The next prime is 380736217. The reversal of 380736166 is 661637083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661637083 = 103 ⋅6423661.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95184040 + ... + 95184043.

It is an arithmetic number, because the mean of its divisors is an integer number (142776063).

Almost surely, 2^380736166 is an apocalyptic number.

380736166 is a deficient number, since it is larger than the sum of its proper divisors (190368086).

380736166 is a wasteful number, since it uses less digits than its factorization.

380736166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190368085.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 380736166 is about 19512.4618129031. The cubic root of 380736166 is about 724.7830764416.

The spelling of 380736166 in words is "three hundred eighty million, seven hundred thirty-six thousand, one hundred sixty-six".