37782166066 has 8 divisors (see below), whose sum is σ = 56674074240. Its totient is φ = 18890807988.

The previous prime is 37782166061. The next prime is 37782166073. The reversal of 37782166066 is 66066128773.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (37782166061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194695 + ... + 336853.

It is an arithmetic number, because the mean of its divisors is an integer number (7084259280).

Almost surely, 2^37782166066 is an apocalyptic number.

37782166066 is a deficient number, since it is larger than the sum of its proper divisors (18891908174).

37782166066 is a wasteful number, since it uses less digits than its factorization.

37782166066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275048.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 37782166066 in words is "thirty-seven billion, seven hundred eighty-two million, one hundred sixty-six thousand, sixty-six".