3777600066 has 8 divisors (see below), whose sum is σ = 7555200144. Its totient is φ = 1259200020.

The previous prime is 3777600061. The next prime is 3777600091. The reversal of 3777600066 is 6600067773.

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

3777600066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3777600061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314800000 + ... + 314800011.

It is an arithmetic number, because the mean of its divisors is an integer number (944400018).

Almost surely, 2^3777600066 is an apocalyptic number.

3777600066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3777600066 is a wasteful number, since it uses less digits than its factorization.

3777600066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629600016.

The product of its (nonzero) digits is 222264, while the sum is 42.

The square root of 3777600066 is about 61462.1840321348. The cubic root of 3777600066 is about 1557.4184876616.

The spelling of 3777600066 in words is "three billion, seven hundred seventy-seven million, six hundred thousand, sixty-six".